Spring Idunn Builds and Best IVs | Fire Emblem Heroes

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This is a ranking page for the hero Idunn - Dragonkin Duo 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 Spring Idunn.

Heroes With the Same Name
Idunn - Dragonkin Duo Icon Spring Idunn

Special Heroes - Familial Festivities Featured Heroes
Spring Idunn Icon Spring Idunn
[9.5/10]
Spring Est Icon Spring Est
[9.0/10]
Spring Narcian Icon Spring Narcian
[8.0/10]
Spring Fir Icon Spring Fir
[9.0/10]

Spring Idunn Rating and Basic Information

FEH Spring Idunn Banner

Overall Rating 9.5/10
Reroll Ranking (excluding Inherit Skill) SS
(▶Reroll Ranking)
Ranking (including Inherit Skill) SS
(▶FEH Tier List)

Idunn - Dragonkin Duo: Basic Information

Color / Weapon Type / Move Type
Rarity
What Kind of Character Are They? Has a special Duo Skill
・Very powerful exclusive skill
・Gains a huge buff when initiating combat

Spring Idunn Skills at 5★

Skill Name Might Range Effect
16 1 Effective against armored foes. Grants Res +3. If a bonus granted by a skill like Rally or Hone is active on unit or if unit is within 2 spaces of an ally, neutralizes unit's penalties and inflicts Atk -6 on foe during combat, and foe cannot make a follow-up attack. If foe's Range = 2, calculates damage using the lower of foe's Def or Res.
-
Cooldown = 3
Boosts damage dealt by 50% of unit’s Res.
-
If foe initiates combat, grants. Atk/Def +6 during combat and inflicts Special cooldown charge -1 on foe per attack. (Only highest value applied. Does not stack.)
-
If unit’s HP ≥ 50% and foe initiates combat, unit makes a guaranteed follow-up attack. Grants Special cooldown charge +1 per attack. (Does not stack. )
-
Grants Atk/Spd +4 to dragon allies within 2 spaces during combat.

Spring Idunn's Duo Skill Effect

Duo Skill
Grants Def/Res+6 and the following status to unit and allies within 5 rows and 5 columns centered on unit for 1 turn: "Neutralizes 'effective against dragons' bonuses and 'effective against armored' bonuses."
(Duo Skills can be used once per map by tapping the Duo button. Duo Skills cannot be used by units deployed using Pair Up.)

Standard Effect 1

Duel
If unit is 5★ and level 40 and unit's stats total less than 185, treats unit's stats as 185 in modes like Arena. (Higher-scoring opponents will appear. Stat total calculation excludes any values added by merges and skills.)

Spring Idunn Best IVs and Stats at Lv. 40

Stats

Lv 40+10 Stats (5★)

HP Atk Spd Def Res Total
+10 Merges W/ Skill Bonuses 51 58 30 41 46 226
Lv.40 +10 51 42 30 41 43 207

See Lv 40 +10 Stats With IVs
HP Atk Spd Def Res Total
+HP
Lv.40 +10
53 41 30 41 42 207
+Atk
Lv.40 +10
50 44 30 41 42 207
+Spd
Lv.40 +10
50 41 33 41 42 207
+Def
Lv.40 +10
50 41 30 45 42 208
+Res
Lv.40 +10
50 41 30 41 46 208

Stats at Lv 40

HP Atk Spd Def Res Total
5★- Adjusted for Skills 46 53 26 37 41 203
5★ Lv.40 46 37 26 37 38 184

Initial Stats (with Skills)

HP Atk Spd Def Res Total
5★ Lv.1 20 25 4 7 11 67

Recommended IVs

Stat Superboon/Superbane IV Recommendation
HP (20) Normal HP ★★★☆☆
Atk (25) No Attack IV ★★★★☆
Spd (4) Spd Bane ★★☆☆☆
Def (7) Def Boon ★★★★★
Res (11) Res Boon ★★★★☆

◯ = Stat gains +4 with a superboon, ✕= Stat goes down by -4 with a superbane, - = No assets or flaws

IV Checker (All Heroes / All Rarities)

+Def and -Spd!

S!Idunn's best IVs are +Def and -Spd. With a Spd boon, she gets Def+4, making her even more resistant against physical attacks. Since she doesn't really need to worry about enemy follow-up attacks, thanks to her weapon skill, you can safely take a Spd bane.

+Def for a +10 Merge

If you are building a +10 merged S!Idunn, we recommend +Def. This will make her extremely strong against your foes' physical attacks. If you want her to be a more offense based unit, +Atk is a good choice as well.

Stat Comparison of Similar Heroes

Hero
HP
Atk
Spd
Def
Res
Total
Spring Idunn Icon Spring Idunn
46 37 26 37 38 184
45 35 26 39 34 179
46 38 23 40 32 179

Note: Stats bonuses from skills are not taken into account.

Spring Idunn Best Builds

Distant Counter Spring IdunnHOT

Assist Skill IconPivot
Special Skill IconAether
+
Def
-
Spd

See Explanation and Source Heroes

How to Use, Explanation

An explanation is not yet available.

Source Hero

Skill Hero
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)

▶Other information regarding skills can be found here

Bold Fighter Spring Idunn

Assist Skill IconPivot
Special Skill IconAether
+
Atk
-
Spd

See Explanation and Source Heroes

How to Use, Explanation

An explanation is not yet available.

Source Hero

Skill Hero
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)

▶Other information regarding skills can be found here

Budget Spring Idunn

Assist Skill IconPivot
Special Skill IconIceberg
Sacred Seal IconRenewal 3

See Explanation and Source Heroes

How to Use, Explanation

An explanation is not yet available.

Source Hero

Skill Hero
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)
Idunn - Dragonkin Duo Icon Idunn - Dragonkin Duo (5★)

▶Other information regarding skills can be found here

Source Heroes for All Skills

Spring Idunn Best Weapon Refine

Spring Idunn's Weapon Cannot Be Refined!

Spring Idunn's weapon cannot currently be refined. This section will be updated if it becomes refineable in the future!

About the Weapon Refinery

Spring Idunn Roles, Strengths, and Weaknesses

Spring Idunn Roles

Idunn - Dragonkin Duo Roles
Close Physical AttackClose-Physical Ranged Physical AttackRanged-Physical Close Magic Attack ImageClose-Magic Ranged MagicRanged-Magic
Physical Wall ImagePhysical Wall Magic Wall ImageMagic Wall Effective ImageEffective Weapon Movement Assist ImageMovement Assist
No All Range Counterattack ImageAll-Range Counterattack RecoveryRecovery No Refresher ImageRefresher Assist Not Legendary ImageLegendary/Mythic

Spring Idunn is a close magic 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 Res stat. On top of this, she has access to an additional Duo Skill, which can be activated once per battle.

Duo Skill Usable in Arenas

S!Idunn's Duo Skill raises her arena score, in addition to unleashing a powerful battle effect. Duo Heroes have a Duo Skill which can be used once per map. Additionally, her Duel effect treats her stats as 185 in Arena modes, giving her a big advantage over many other heroes.

The effect of Idunn's Duo Skill is shown below

Duo Skill Idunn.png

Grants Def/Res+6 and the following status to unit and allies within 5 rows and 5 columns centered on unit for 1 turn: Neutralizes 'effective against dragons' bonuses and 'effective against armored' bonuses.
(Duo Skills can be used once per map by tapping the Duo button. Duo Skills cannot be used by units deployed using Pair Up.)

Standard Effect 1: Duel
If unit is 5★ and level 40 and unit's stats total less than 185, treats unit's stats as 185 in modes like Arena. (Higher-scoring opponents will appear. Stat total calculation excludes any values added by merges and skills.)

Idunn Strengths

Duo Skill can nullify dragon effective skills

Spring Idunn has the power to use a unique Duo Skill once per map. This will grant Def/Res+6 to Idunn and an ally and also block skills that are effective on armor and dragons, making her ideal in both armor or dragon parties.

Can nullify penalties and prevent follow-up attacks

Idunn's exclusive weapon Zephyr Breath will allow her to block penalties on her, inflict Atk-6, and prevent follow-up attacks from a foe when she has an active Rally/Hone skill on her, or she is within two spaces of an ally. As an added bonus, it is effective on armored foes and ranged foes, making Idunn very versatile and powerful in a number of different team types.

Gains a lot of extra oomph when the foe strikes first

With her A Skill Sturdy Stance, and her B Skill Vengeful Fighter, Idunn is made for tanking the foes' attacks. Each time she does this, she will gain Atk/Def+6 and a guaranteed follow-up attack, which will allow her to easily take down a ton of units in the enemy phase.

Idunn Weaknesses

Weak to both dragon and armor effective weapons

Like regular Idunn, Spring Idunn has two weaknesses, so units with dragon/armor-effective weapons can quickly take her down. Her Duo Skill can temporarily cancel this out, but you will still need to keep a close eye on enemy unit's weapons.

Heroes with Effective Skills

Should you Unlock Potential for Spring Idunn?

Should You Unlock Potential for this Hero? Cannot Unlock Potential

Idunn - Dragonkin Duo Only Appears as a 5 Star Hero!

Idunn - Dragonkin Duo only appears as a 5 Star Hero. We will include whether or not you should Unlock Potential for Idunn - Dragonkin Duo if a 4 Star version is released!

Unlock Potential Tier List

Spring Idunn - List of Skills

Weapons

Skill Name Might Range Effect Learned At
6 1 No Effect 5★
8 1 No Effect 5★
11 1 No Effect 5★
16 1 Effective against armored foes. Grants Res +3. If a bonus granted by a skill like Rally or Hone is active on unit or if unit is within 2 spaces of an ally, neutralizes unit's penalties and inflicts Atk -6 on foe during combat, and foe cannot make a follow-up attack. If foe's Range = 2, calculates damage using the lower of foe's Def or Res. 5★

Assists

This Hero has no Assist skills that can be learned.

Specials

Skill Name Effect Learned At
(Cooldown Count = 4) Boosts damage dealt by 50% of unit’s Res. 5★
(Cooldown Count = 3) Boosts damage dealt by 50% of unit’s Res. 5★

Passives

Skill Name Effect Learned At
Grants Def +2 during combat when this unit is attacked. 5★
If foe initiates combat, grants Atk/Def +2 during combat. 5★
If foe initiates combat, grants Atk/Def +4 during combat. 5★
If foe initiates combat, grants. Atk/Def +6 during combat and inflicts Special cooldown charge -1 on foe per attack. (Only highest value applied. Does not stack.) 5★
If unit’s HP ≥ 90% and foe initiates combat, unit makes a guaranteed follow-up attack. Grants Special cooldown charge +1 per attack. (Does not stack. ) 5★
If unit’s HP ≥ 70% and foe initiates combat, unit makes a guaranteed follow-up attack. Grants Special cooldown charge +1 per attack. (Does not stack. ) 5★
If unit’s HP ≥ 50% and foe initiates combat, unit makes a guaranteed follow-up attack. Grants Special cooldown charge +1 per attack. (Does not stack. ) 5★
Grants adjacent allies Atk +2 during combat. 5★
Grants adjacent allies Atk +3 during combat. 5★
Grants Atk/Spd +4 to dragon allies within 2 spaces during combat. 5★

Spring Idunn as a Source Hero

Spring Idunn Avatar

Value of Skills ★★★★★

Currently unknown!

As Spring Idunn has not yet been released, we do not know whether or not she should be used for foddering. Please check back soon!

How to Get Spring Idunn / Illustrations / Voice Actor / Quotes

How to Get Spring Idunn

Obtained through a Special Summoning Event!

Spring Idunn 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 and Illustrator Information

Voice Actor
(English)
Sarah Blandy
Illustrator Umiu Geso
Appears In

FEH: Related Links

Special Heroes: Familial Festivities

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Heroes from Special Heroes - Familial Festivities
Spring Idunn Icon Spring Idunn
[9.5/10]
Spring Est Icon Spring Est
[9.0/10]
Spring Narcian Icon Spring Narcian
[8.0/10]
Spring Fir Icon Spring Fir
[9.0/10]

See All Red Heroes

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Comment

1 Anonymous4 months

Pretty sure from the build, Spring Idunn cannot use Def/Res Oath 3.

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