★ Latest Banners - New Heroes: Harmonized CYL Ike, Lyn
☆ New Units - Harmonized Brave Ike, Harmonized Brave Lyn, Vanitas
☆ Free Units - N/A

This is a ranking page for the hero Heiðrún - Peaceful Horizon from the game Fire Emblem Heroes (FEH). Read on to learn the best IVs (Individual Values), best builds (Inherit Skill), weapon refinement, stats at Lv 40, and more for Summer Heiðrún.
| Heroes With the Same Name | |
|---|---|
|
|
|
List of Contents
| Special Heroes - A New Self Featured Heroes | |||
|---|---|---|---|
Summer Eikþyrnir[9.5/10] |
Summer Hapi[9.5/10] |
Summer Yuri[9.5/10] |
Summer Heiðrún[9.5/10] |

| Overall Rating | 9.5/10 |
|---|---|
| Reroll Ranking (excluding Inherit Skill) |
S (▶Reroll Ranking) |
| Ranking (including Inherit Skill) |
S (▶FEH Tier List) |
| Color / Weapon Type / Move Type | |
|---|---|
| Rarity | |
| What Kind of Character Are They? | ・Tropical Nectar has built-in Distant Counter, grants allies within 3Rx3C Atk/Def/Res+5, Atk/Def/Res penalty neutralization, and a guaranteed follow-up, grants Heiðrún up to Atk/Def/Res+14, a guaranteed follow-up, bonus true damage and true DR, and neutralizes Heiðrún's Atk/Def/Res penalties. ・Sweet Nectar has a built-in Bulwark effect, grants 【Divine Nectar】 to Heiðrún and nearby allies at the start of each phase, grants Atk/Def/Res+5 and +7 bonus true damage to Heiðrún. |
|
Might: 14 Range: 1 Accelerates Special trigger (cooldown count-1). Unit can counterattack regardless of foe's range. For allies within 3 rows or 3 columns centered on unit, grants Atk/Def/Res+5, neutralizes ally's penalties to Atk/Def/Res, and ally makes a guaranteed follow-up attack during combat. If unit is transformed or if foe initiates combat, grants bonus to unit's Atk/Def/Res = number of allies within 3 spaces of unit x 3, + 5 (max 14), neutralizes unit's penalties to Atk/Def/Res, unit makes a guaranteed follow-up attack, deals damage = 20% of unit's Res (excluding area-of-effect Specials), and reduces damage from foe's attacks by 20% of unit's Res during combat (excluding area-of-effect Specials). At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit. |
|
Cooldown Count = 4 Boosts damage by 70% of unit's Res when Special triggers. If unit's or foe's Special is ready, or unit's or foe's Special triggered before or during this combat, and also, if unit's Res ≥ foe's Res-10, reduces damage from foe's next attack by 40% (once per combat; excluding area-of-effect Specials). |
|
If unit can transform, transformation effects gain "if unit is within 2 spaces of a beast or dragon ally, or if number of adjacent allies other than beast or dragon allies ≤ 2" as a trigger condition (in addition to existing conditions). If defending in Aether Raids, at the start of enemy turn 1, if conditions for transforming are met, unit transforms. If unit is transformed or if foe initiates combat, grants Def/Res+8 to unit and neutralizes foe's bonuses to Atk/Def during combat, and restores 7 HP to unit after combat. |
|
Inflicts Atk-5 on foe during combat. If unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, or if foe's attack can trigger unit's Special, reduces the percentage of unit's non-Special "reduce damage by X%" skills by 50% (excluding area-of-effect Specials), reduces damage from foe's attacks by 20% of the greater of unit's Def or Res (excluding area-of-effect Specials), and grants Special cooldown count-2 to unit before foe's first attack during combat. During combat, if unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, when Special triggers, deals damage = 20% of the greater of unit's Def or Res (excluding area-of-effect Specials) and neutralizes "reduces damage by X%" effects from foe's non-Special skills (excluding area-of-effect Specials). During combat, if foe's attack can trigger unit's Special, unit's next attack deals damage = 20% of the greater of unit's Def or Res and neutralizes "reduces damage by X%" effects from foe's non-Special skills (resets at end of combat). |
|
Foes with Range = 1 cannot move through spaces adjacent to unit (does not affect foes with Pass skills). Foes with Range = 2 cannot move through spaces within 2 spaces of unit (does not affect foes with Pass skills). At start of player phase or enemy phase, if unit is within 2 spaces of an ally, grants 【Divine Nectar】 to unit and allies within 2 spaces of unit for 1 turn. If a Rally or movement Assist skill is used by an ally with the 【Divine Nectar】 effect active (excluding unit), grants another action to that ally (once per turn; if another effect that grants action to ally has been activated at the same time, this effect is also considered to have been triggered). If unit is within 3 spaces of an ally, grants Atk/Def/Res+5 to unit, unit deals +7 damage (excluding area-of-effect Specials) and reduces damage from foe's attacks by 7 during combat (excluding area-of-effect Specials). |
| Stat | Superboon/Superbane | IV Recommendation |
|---|---|---|
| HP (19) |
|
★★★☆☆ |
| Atk (13) |
|
★★★★☆ |
| Spd (3) |
|
★☆☆☆☆ |
| Def (13) |
|
★★★★☆ |
| Res (9) |
|
★★★★★ |
◯ = Stat gains +4 with a superboon, ✕= Stat goes down by -4 with a superbane, - = No assets or flaws
| See the IV Checker for All Units | Trait Fruits—How to Change IVs |
When using an Ascendant Floret, we recommend getting the next superboon if it fits the hero. If not, consider what stat your hero needs most.
The best IVs for Summer Heiðrún are +Res and -Spd. Res is a superboon and boosts Heiðrún's Res from base 48 to base 52 and is also used in the calculation of Tropical Nectar's true damage and true damage reduction effects. It is Heiðrún's best boon by a huge margin.
Spd is a clear dump stat and can be safely taken as a bane.
We recommend a +Res IV when merging Summer Heiðrún up to +10 for similar reasons above.
| HOT | |
|---|---|
|
|
|
| Updated on 07/08/2025 | |
Summer Heiðrún excels as a support unit that can also dish out damage when necessary. Deflect Missile 3 is used to protect her from Desperation effects, notably from Emblem Lyn.
| Neutral Stats at Lv. 40 (5★) | ||
|---|---|---|
| 199 | ||
| HP |
41 |
Rank: 370/1322 |
| Atk |
46 |
Rank: 95/1322 |
| Spd |
18 |
Rank: 1161/1322 |
| Def |
46 |
Rank: 40/1322 |
| Res |
48 |
Rank: 9/1322 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +10 Merges W/ Skill Bonuses | 46 | 65 | 22 | 51 | 52 | 236 | Lv.40 +10 | 46 | 51 | 22 | 51 | 52 | 222 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +HP Lv.40 +10 | 48 | 50 | 22 | 50 | 52 | 222 |
| +Atk Lv.40 +10 | 45 | 53 | 22 | 50 | 52 | 222 |
| +Spd Lv.40 +10 | 45 | 50 | 25 | 50 | 52 | 222 |
| +Def Lv.40 +10 | 45 | 50 | 22 | 53 | 52 | 222 |
| +Res Lv.40 +10 | 45 | 50 | 22 | 50 | 56 | 223 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★- Adjusted for Skills | 41 | 60 | 18 | 46 | 48 | 213 |
| 5★ Lv.40 | 41 | 46 | 18 | 46 | 48 | 199 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★ Lv.1 | 19 | 27 | 3 | 13 | 9 | 71 |
| Hero |
HP |
Atk |
Spd |
Def |
Res |
Total |
|---|---|---|---|---|---|---|
| 45 | 48 | 18 | 49 | 44 | 204 | |
|
|
41 | 46 | 18 | 46 | 48 | 199 |
| 42 | 48 | 16 | 48 | 45 | 199 | |
| 40 | 45 | 16 | 45 | 47 | 193 | |
| 41 | 44 | 19 | 44 | 40 | 188 | |
| 48 | 43 | 29 | 43 | 24 | 187 | |
| 40 | 43 | 26 | 43 | 31 | 183 | |
| 40 | 39 | 43 | 35 | 25 | 182 | |
| 45 | 43 | 40 | 31 | 23 | 182 | |
| 41 | 39 | 27 | 41 | 34 | 182 | |
| 45 | 39 | 26 | 41 | 30 | 181 | |
| 48 | 41 | 24 | 43 | 20 | 176 | |
| 41 | 38 | 40 | 34 | 23 | 176 | |
| 40 | 35 | 41 | 31 | 25 | 172 | |
| 40 | 35 | 37 | 33 | 23 | 168 | |
| 47 | 37 | 24 | 39 | 20 | 167 | |
| 45 | 41 | 24 | 38 | 19 | 167 | |
| 40 | 31 | 37 | 32 | 23 | 163 |
Note: Stats bonuses from skills are not taken into account.
Summer Heiðrún is a close physical attacker (range = 1). Therefore, when not accounting for the Weapon Triangle, the amount of damage she deals will be equivalent to her Atk minus the foe's Def stat.

Summer Heiðrún's exclusive weapon Tropical Nectar has built-in Distant Counter and grants allies within 3 rows and 3 columns centered on Heiðrún Atk/Def/Res+5, a guaranteed follow-up attack, and neutralizes their penalties to Atk/Def/Res in combat.
Tropical Nectar also grants Heiðrún up to Atk/Def/Res+14 based on the number of nearby allies, neutralizes Heiðrún's Atk/Def/Res penalties, grants Heiðrún a guaranteed follow-up attack, bonus true damage equal to 20% of her Res, and true damage reduction equal to 20% of her Res.
Tropical Nectar also has the standard Infantry Beast transformation effects which include Atk+2, +7 bonus true damage on Special trigger, and a Tempo effect.
Tropical Nectar is a complete weapon, having offensive, defensive, and supportive effects, making Heiðrún useful in most cases.
Summer Heiðrún's exclusive C skill Sweet Nectar has a built-in Bulwark effect, preventing foes from moving past spaces near Heiðrún.
Sweet Nectar also grants 【Divine Nectar】 to Heiðrún and nearby allies at the start of both player and enemy phase, and also grants an extra action to the first ally with 【Divine Nectar】 that uses a Rally or movement Assist. This effect is similar to other Heiðrún variants, granting the powerful 【Divine Nectar】 status and an extra action to an ally.
Sweet Nectar also grants Heiðrún Atk/Def/Res+5, +7 bonus true damage, and +7 bonus true damage reduction in combat if Heiðrún is within 3 spaces of an ally, providing a small boost to her combat potential.
Sweet Nectar is the perfect frontline skill, granting offensive, defensive, and supportive effects while preventing foes from reaching the backline with its Bulwark effect.
List of Status Effects: Bonuses and Penalties
Summer Heiðrún takes 1.5x damage from beast-effective weapons like Brave Eliwood's Nini's Ice Lance or Picnic Flora's Sæhrímnir, and one blow from this type of weapon will deal significant damage. Make sure you know what weapons you are up against before hopping too far into the line of battle!
| Should You Unlock Potential for this Hero? | Cannot Unlock Potential |
|---|
Heiðrún - Peaceful Horizon only appears as a 5 Star Hero. We will include whether or not you should Unlock Potential for Heiðrún - Peaceful Horizon if a 4 Star version is released!
| Skill Name | Might | Range | Effect | Learned At |
|---|---|---|---|---|
| 4 | 1 | At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2 and deals +10 damage when Special triggers. | 5★ | |
| 6 | 1 | At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2 and deals +10 damage when Special triggers. | 5★ | |
| 9 | 1 | At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2 and deals +10 damage when Special triggers. | 5★ | |
| 14 | 1 | Accelerates Special trigger (cooldown count-1). Unit can counterattack regardless of foe's range. For allies within 3 rows or 3 columns centered on unit, grants Atk/Def/Res+5, neutralizes ally's penalties to Atk/Def/Res, and ally makes a guaranteed follow-up attack during combat. If unit is transformed or if foe initiates combat, grants bonus to unit's Atk/Def/Res = number of allies within 3 spaces of unit x 3, + 5 (max 14), neutralizes unit's penalties to Atk/Def/Res, unit makes a guaranteed follow-up attack, deals damage = 20% of unit's Res (excluding area-of-effect Specials), and reduces damage from foe's attacks by 20% of unit's Res during combat (excluding area-of-effect Specials). At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit. |
5★ |
| This Hero has no Assist skills that can be learned. |
| Skill Name | Effect | Learned At |
|---|---|---|
| (Cooldown Count = 4) Boosts damage dealt by 50% of unit’s Res. | 5★ | |
| (Cooldown Count = 4) Boosts damage dealt by 80% of unit’s Res. | 5★ | |
| (Cooldown Count = 4) Boosts damage by 70% of unit's Res when Special triggers. If unit's or foe's Special is ready, or unit's or foe's Special triggered before or during this combat, and also, if unit's Res ≥ foe's Res-10, reduces damage from foe's next attack by 40% (once per combat; excluding area-of-effect Specials). |
5★ |
| Skill Name | Effect | Learned At |
|---|---|---|
| Grants Def/Res+X to unit during combat. (X = 2 x number of allies within 2 spaces + 1; max 3.) | 5★ | |
| Grants Def/Res+X to unit during combat. (X = 2 x number of allies within 2 spaces + 1; max 5.) | 5★ | |
| Grants Def/Res+X to unit during combat. (X = 2 x number of allies within 2 spaces + 1; max 7.) | 5★ | |
| If unit can transform, transformation effects gain "if unit is within 2 spaces of a beast or dragon ally, or if number of adjacent allies other than beast or dragon allies ≤ 2" as a trigger condition (in addition to existing conditions). If defending in Aether Raids, at the start of enemy turn 1, if conditions for transforming are met, unit transforms. If unit is transformed or if foe initiates combat, grants Def/Res+8 to unit and neutralizes foe's bonuses to Atk/Def during combat, and restores 7 HP to unit after combat. |
5★ | |
| If unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, or if foe's attack can trigger unit's Special, reduces the percentage of unit's non-Special "reduce damage by X%" skills by 50% (excluding area-of-effect Specials), reduces damage from foe's attacks by 5% of the greater of unit's Def or Res (excluding area-of-effect Specials), and grants Special cooldown count-2 to unit before foe's first attack during combat. During combat, if unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, when Special triggers, deals damage = 5% of the greater of unit's Def or Res (excluding area-of-effect Specials). During combat, if foe's attack can trigger unit's Special, unit's next attack deals damage = 5% of the greater of unit's Def or Res (boost resets at end of combat). | 5★ | |
| If unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, or if foe's attack can trigger unit's Special, reduces the percentage of unit's non-Special "reduce damage by X%" skills by 50% (excluding area-of-effect Specials), reduces damage from foe's attacks by 10% of the greater of unit's Def or Res (excluding area-of-effect Specials), and grants Special cooldown count-2 to unit before foe's first attack during combat. During combat, if unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, when Special triggers, deals damage = 10% of the greater of unit's Def or Res (excluding area-of-effect Specials). During combat, if foe's attack can trigger unit's Special, unit's next attack deals damage = 10% of the greater of unit's Def or Res (boost resets at end of combat). | 5★ | |
| If unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, or if foe's attack can trigger unit's Special, reduces the percentage of unit's non-Special "reduce damage by X%" skills by 50% (excluding area-of-effect Specials), reduces damage from foe's attacks by 15% of the greater of unit's Def or Res (excluding area-of-effect Specials), and grants Special cooldown count-2 to unit before foe's first attack during combat. During combat, if unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, when Special triggers, deals damage = 15% of the greater of unit's Def or Res (excluding area-of-effect Specials). During combat, if foe's attack can trigger unit's Special, unit's next attack deals damage = 15% of the greater of unit's Def or Res (boost resets at end of combat). | 5★ | |
| Inflicts Atk-5 on foe during combat. If unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, or if foe's attack can trigger unit's Special, reduces the percentage of unit's non-Special "reduce damage by X%" skills by 50% (excluding area-of-effect Specials), reduces damage from foe's attacks by 20% of the greater of unit's Def or Res (excluding area-of-effect Specials), and grants Special cooldown count-2 to unit before foe's first attack during combat. During combat, if unit's max Special cooldown count value ≥ 3 and unit's attack can trigger unit's Special, when Special triggers, deals damage = 20% of the greater of unit's Def or Res (excluding area-of-effect Specials) and neutralizes "reduces damage by X%" effects from foe's non-Special skills (excluding area-of-effect Specials). During combat, if foe's attack can trigger unit's Special, unit's next attack deals damage = 20% of the greater of unit's Def or Res and neutralizes "reduces damage by X%" effects from foe's non-Special skills (resets at end of combat). |
5★ | |
| Foes with Range = 1 cannot move through spaces adjacent to unit (does not affect foes with Pass skills). Foes with Range = 2 cannot move through spaces within 2 spaces of unit (does not affect foes with Pass skills). At start of player phase or enemy phase, if unit is within 2 spaces of an ally, grants 【Divine Nectar】 to unit and allies within 2 spaces of unit for 1 turn. If a Rally or movement Assist skill is used by an ally with the 【Divine Nectar】 effect active (excluding unit), grants another action to that ally (once per turn; if another effect that grants action to ally has been activated at the same time, this effect is also considered to have been triggered). If unit is within 3 spaces of an ally, grants Atk/Def/Res+5 to unit, unit deals +7 damage (excluding area-of-effect Specials) and reduces damage from foe's attacks by 7 during combat (excluding area-of-effect Specials). |
5★ |

| Value of Skills | ★★★★★ |
|---|
Summer Heiðrún has Ice Wall, Def/Res Fortune, and Laguz Friend 4 as inheritable options.
All of these skills are worth inheriting onto your favorite units.
| List of Source Heroes | The Best Fodder Units |
If you have feedback about this hero page, let us know in the comments section below!
Summer Heiðrún is a limited time Hero who can be pulled from a Special Heroes Summoning Event. They do not appear in regular summons.
Note: Not currently a featured hero in any Summon events.
Current Focuses and Which You Should Pull From
| Voice Actor (English) |
Cat Protano |
|---|---|
| Illustrator | Sencha |
| Appears In |
![]() |
![]() |
![]() |
![]() |

| Heroes from Focus - Double Special Heroes October 2025 | |||
|---|---|---|---|
New Year Tana[9.0/10] |
Bridal Tine[8.0/10] |
Valentine's Claude[9.0/10] |
Young Corrin (M)[9.5/10] |
Summer Yuri[9.5/10] |
Tea Ingrid[9.5/10] |
Bridal Julia[9.5/10] |
Summer Heiðrún[9.5/10] |
▶︎Return to the Colorless Heroes Page
| Close-Range | Ranged |
|---|---|
Colorless Breath |
Colorless Dagger |
Colorless Beast |
Colorless Bow |
Colorless Tome |
Staff |
Summer Heiðrún Builds and Best IVs



Genshin Impact Walkthrough & Guides Wiki

Umamusume: Pretty Derby Walkthrough & Guides Wiki

Where Winds Meet Walkthrough & Guides Wiki
Honkai: Star Rail Walkthrough & Guides Wiki

Digimon Story: Time Stranger Walkthrough & Guides Wiki

Wuthering Waves Walkthrough & Guides Wiki
Zenless Zone Zero Walkthrough & Guides Wiki
Pokemon TCG Pocket (PTCGP) Strategies & Guides Wiki
Pokemon Legends: Z-A Walkthrough & Guides Wiki

Clair Obscur: Expedition 33 Walkthrough & Guides Wiki

Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki
Yu-Gi-Oh! Master Duel Walkthrough & Guides Wiki

Diablo 4: Vessel of Hatred Walkthrough & Guides Wiki

Elden Ring Shadow of the Erdtree Walkthrough & Guides Wiki
Super Smash Bros. Ultimate Walkthrough & Guides Wiki

Monster Hunter World Walkthrough & Guides Wiki

Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki
The Legend of Zelda: Tears of the Kingdom Walkthrough & Guides Wiki

Persona 3 Reload Walkthrough & Guides Wiki
Cyberpunk 2077: Ultimate Edition Walkthrough & Guides Wiki
© 2025 Nintendo / INTELLIGENT SYSTEMS
The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
The contents we provide on this site were created personally by members of the Game8 editorial department.
We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.