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This is a ranking page for the hero Deirdre - Fated Saint 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 Legendary Deirdre.
| Heroes With the Same Name | |
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List of Contents
| Focus - Legendary & Mythic Hero Remix: Legendary Deirdre Featured Heroes | |||
|---|---|---|---|
Legendary Lilina[9.0/10] |
Legendary Sigurd[8.5/10] |
Legendary Deirdre[9.0/10] |
Aided Reginn[9.0/10] |
Legendary Edelgard[8.5/10] |
Legendary Byleth (M)[8.5/10] |
Mythic Medeus[9.0/10] |
Arval[8.5/10] |

| Overall Rating | 9.0/10 |
|---|---|
| Reroll Ranking (excluding Inherit Skill) |
B (▶Reroll Ranking) |
| Ranking (including Inherit Skill) |
A (▶FEH Tier List) |
| Color / Weapon Type / Move Type | |
|---|---|
| Rarity | |
| What Kind of Character Are They? | ・Refined Spirit Forest Writ deals dragon-effective damage, inflicts massive Atk/Res penalties onto Deirdre's foe, disables foe's adaptive damage, grants Deirdre bonus true damage, true DR, a guaranteed follow-up attack, post-combat healing, and grants Deirdre and her allies a Time's Pulse 4 effect. ・Balance Circlet II has full DR piercing, grants Deirdre DR on foe's attack and a Miracle effect. |
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Might: 14 Range: 2 Accelerates Special trigger (cooldown count-1). Effective against dragon foes. If unit is within 3 spaces of an ally, inflicts Atk/Res-6 on foe during combat, unit makes a guaranteed follow-up attack, disables foe's skills that "calculate damage using the lower of foe's Def or Res," and also, if unit's Res > foe's Res at start of combat, inflicts penalty on foe's Atk/Res during combat = 80% of difference between Res stats at start of combat. (Maximum penalty of -12.) |
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Cooldown Count = 2 When Special triggers, boosts damage by 40% of unit's Res and neutralizes "reduces damage by X%" effects from foe's non-Special skills. If unit's or foe's Special is ready or if unit's or foe's Special triggered before or during this combat and if unit can attack in combat, reduces damage from foe's next attack by 40% (once per combat; excluding area-of-effect Specials). If unit’s HP > 1 and foe would reduce unit's HP to 0 during combat, unit survives with 1 HP (once per combat; considered a non-Special effect; does not stack with non-Special effects that allow unit to survive with 1 HP if foe's attack would reduce unit's HP to 0). |
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Grants Atk/Res+7. Inflicts Def-5. |
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At start of player phase or enemy phase, inflicts Atk/Res-6 and 【Discord】 on foes with Res less than unit's Res and that are within 2 spaces of another foe through their next actions. Inflicts penalty on foe's Atk/Res during combat = number of foes inflicted with 【Discord】 within 2 spaces of target, including target, × 2, + 4 (max 10) and deals damage = 15% of unit's Res (excluding area-of-effect Specials). |
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At start of turn, inflicts Atk/Res-6 on nearest foes within 4 spaces through their next actions and grants Atk/Res+6 to unit for 1 turn. |
| Stat | Superboon/Superbane | IV Recommendation |
|---|---|---|
| HP (18) |
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★★★☆☆ |
| Atk (13) |
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★★★★★ |
| Spd (6) |
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★★★☆☆ |
| Def (4) |
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★☆☆☆☆ |
| Res (10) |
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★★★★★ |
◯ = 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 Legendary Deirdre are +Res and -Def. Boosting Res improves Deirdre's offensive and defensive abilities, being the basis for refined Spirit Forest Writ's true damage and true damage reduction effects.
Her Def is a clear dump stat, especially with Still Water 4, and should be the bane of choice.
We recommend a +Res IV when merging Legendary Deirdre to +10. Increasing Res leads to the best performance.
| HOT | |
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| Updated on 05/07/2025 | |
This build uses premium skills to improve upon Legendary Deirdre's base kit, functioning as a Res tank while providing Ploy support at the same time.
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Legendary Deirdre's base kit is already good to go as is. She will perform well as a magic attacker/check with it.
| Exclusive Weapon Effect from Refining (Special Effect Type) | |
|---|---|
| SP: 400 | |
| Might: 14 Range: 2 HP: Accelerates Special trigger (cooldown count-1). Effective against dragon foes. If unit initiates combat or is within 3 spaces of an ally, inflicts Atk/Res-6 on foe, reduces damage from foe's attacks by 20% of unit's Res (excluding area-of-effect Specials), unit makes a guaranteed follow-up attack, and disables foe's skills that "calculate damage using the lower of foe's Def or Res" during combat, and also, if unit's Res > foe's Res at start of combat, inflicts penalty on foe's Atk/Res during combat = difference between Res stats at start of combat (max 16). At start of turn, and at start of enemy phase (except for in Summoner Duels), if unit is within 2 spaces of an ally, grants Atk/Res+6 and "neutralizes unit's penalties during combat" to unit and allies within 2 spaces of unit for 1 turn, and also, for unit and allies within 2 spaces of unit, if Special cooldown count is at its maximum value, grants Special cooldown count-1. For allies within 2 spaces of unit, if Special cooldown count is at its maximum value after combat, grants Special cooldown count-1. If unit initiates combat or is within 3 spaces of an ally, inflicts Atk/Res-6 on foe and deals damage = 20% of unit's Res during combat (excluding area-of-effect Specials), and restores 7 HP to unit after combat, and also, if Special cooldown count is at its maximum value, grants Special cooldown count-1 after combat. |
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Refined Spirit Forest Writ grants Legendary Deirdre and nearby allies an effect similar to Time's Pulse 4 and improves upon Deirdre's combat by inflicting additional Atk/Res penalties onto her foe, granting Deirdre bonus true damage equal to 20% of her Res and 7 HP post-combat healing.
This refine is worth using mostly for the Time's Pulse 4 effect which can be maximized by running low cooldown Specials on the entire team. For Deirdre herself, this effect will always ensure that Balance Circlet II is pre-charged for every combat.
| Neutral Stats at Lv. 40 (5★) | ||
|---|---|---|
| 177 | ||
| HP |
40 |
Rank: 489/1322 |
| Atk |
43 |
Rank: 207/1322 |
| Spd |
32 |
Rank: 730/1322 |
| Def |
19 |
Rank: 989/1322 |
| Res |
43 |
Rank: 47/1322 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +10 Merges W/ Skill Bonuses | 45 | 69 | 36 | 28 | 55 | 233 | Lv.40 +10 | 45 | 48 | 36 | 23 | 48 | 200 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +HP Lv.40 +10 | 47 | 47 | 36 | 23 | 47 | 200 |
| +Atk Lv.40 +10 | 44 | 51 | 36 | 23 | 47 | 201 |
| +Spd Lv.40 +10 | 44 | 47 | 39 | 23 | 47 | 200 |
| +Def Lv.40 +10 | 44 | 47 | 36 | 26 | 47 | 200 |
| +Res Lv.40 +10 | 44 | 47 | 36 | 23 | 50 | 200 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★- Adjusted for Skills | 40 | 64 | 32 | 24 | 50 | 210 |
| 5★ Lv.40 | 40 | 43 | 32 | 19 | 43 | 177 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★ Lv.1 | 18 | 27 | 6 | 4 | 10 | 65 |
| Hero |
HP |
Atk |
Spd |
Def |
Res |
Total |
|---|---|---|---|---|---|---|
| 40 | 48 | 38 | 18 | 49 | 193 | |
| 40 | 49 | 18 | 32 | 49 | 188 | |
| 40 | 48 | 36 | 17 | 47 | 188 | |
| 40 | 45 | 31 | 23 | 43 | 182 | |
| 39 | 46 | 30 | 21 | 46 | 182 | |
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40 | 43 | 32 | 19 | 43 | 177 |
| 40 | 44 | 27 | 20 | 46 | 177 | |
| 43 | 39 | 25 | 23 | 40 | 170 | |
| 40 | 35 | 24 | 32 | 35 | 166 | |
| 36 | 41 | 32 | 17 | 39 | 165 | |
| 40 | 39 | 28 | 19 | 36 | 162 | |
| 42 | 35 | 31 | 21 | 33 | 162 | |
| 41 | 38 | 17 | 35 | 30 | 161 | |
| 35 | 35 | 28 | 18 | 35 | 151 | |
| 38 | 37 | 33 | 20 | 23 | 151 |
Note: Stats bonuses from skills are not taken into account.
Legendary Deirdre is a ranged magic attacker (range = 2). 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.

Legendary Deirdre's refined Spirit Forest Writ is a powerful blue tome that has in-combat effects and stat swings that all help her win in combat, while also having effects that support her allies during their combat.
Below is a summary of these effects:
| Condition(s) | Effect |
|---|---|
| Always | Accelerates Special trigger (cooldown count-1). |
| Always | Effective against dragon foes. |
| At start of turn and at start of enemy phase Legendary Deirdre is within 2 spaces of an ally |
Grants Atk/Res+6 and a "neutralizes unit's penalties during combat" status to Deirdre and allies within 2 spaces. |
| At start of turn and at start of enemy phase Legendary Deirdre is within 2 spaces of an ally |
For Deirdre and allies within 2 spaces: if Special cooldown count is at its maximum value, grants Special cooldown count-1. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally | Inflicts Atk/Res-12 on foe during combat. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally | Grants Deirdre bonus true damage equal to 20% of her Res. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally | Grants Deirdre bonus true damage reduction equal to 20% of her Res. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally | Deirdre makes a guaranteed follow-up attack. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally | Disables foe's skills that apply adaptive damage. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally | Grants Deirdre 7 HP post-combat healing. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally | After combat, if Deirdre's Special cooldown count is at its maximum value, grants Special cooldown count-1. |
| Legendary Deirdre initiates combat or is within 3 spaces of an ally Legendary Deirdre's Res > foe's Res at start of combat |
Inflicts penalty on foe's Atk/Res during combat = difference between Res stats at start of combat. (Maximum penalty of -16.) |
Legendary Deirdre's Balance Circlet II is a 2 cooldown Special (1 after Spirit Forest Writ) that boosts her attack by 40% of her Res while also neutralizing the foe's percentage-based damage reduction effects completely.
Balance Circlet II grants Legendary Deirdre 40% damage reduction if her or her foe's Special is ready or already triggered, and also has a built-in Miracle effect, allowing Deirdre to survive one instance of defeat.
Balance Circlet II has great defensive effects that ensure Legendary Deirdre survives combat while also having a low cooldown. With refined Spirit Forest Writ's Time's Pulse 4 effects, Spirit Forest Writ will always be pre-charged before all of Deirdre's combats.
Legendary Deirdre's base Def sits at 19, which is further lowered by Still Water 4 if you choose to keep it equipped. This leaves her completely vulnerable to opponents that deal physical damage, especially melee foes that can partially avoid the conditions of Circlet of Balance.
| Should You Unlock Potential for this Hero? | Cannot Unlock Potential |
|---|
Deirdre - Fated Saint only appears as a 5 Star Hero. We will include whether or not you should Unlock Potential for Deirdre - Fated Saint if a 4 Star version is released!
| Skill Name | Might | Range | Effect | Learned At |
|---|---|---|---|---|
| 4 | 2 | No Effect | 5★ | |
| 6 | 2 | No Effect | 5★ | |
| 9 | 2 | No Effect | 5★ | |
| 14 | 2 | Accelerates Special trigger (cooldown count-1). Effective against dragon foes. If unit is within 3 spaces of an ally, inflicts Atk/Res-6 on foe during combat, unit makes a guaranteed follow-up attack, disables foe's skills that "calculate damage using the lower of foe's Def or Res," and also, if unit's Res > foe's Res at start of combat, inflicts penalty on foe's Atk/Res during combat = 80% of difference between Res stats at start of combat. (Maximum penalty of -12.) | 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 = 3) Boosts damage dealt by 50% of unit’s Res. | 5★ | |
| (Cooldown Count = 2) Boosts Special damage by 40% of unit's Res. If unit's HP > 1, foe would reduce unit's HP to 0, and both following conditions apply, unit survives with 1 HP: ・ Unit or foe's Special is ready, or unit or foe's Special triggered during this combat. ・ Unit initoates combat or foe's Range = 2. (Once per map. Considered a non-Special effect. Does not stack with non-Special effects that allow unit to survive with 1 HP if foe's attack would reduce HP to 0.) |
5★ | |
| (Cooldown Count = 2) When Special triggers, boosts damage by 40% of unit's Res and neutralizes "reduces damage by X%" effects from foe's non-Special skills. If unit's or foe's Special is ready or if unit's or foe's Special triggered before or during this combat and if unit can attack in combat, reduces damage from foe's next attack by 40% (once per combat; excluding area-of-effect Specials). If unit’s HP > 1 and foe would reduce unit's HP to 0 during combat, unit survives with 1 HP (once per combat; considered a non-Special effect; does not stack with non-Special effects that allow unit to survive with 1 HP if foe's attack would reduce unit's HP to 0). |
5★ |
| Skill Name | Effect | Learned At |
|---|---|---|
| Grants Atk/Res+3. Inflicts Def-3. | 5★ | |
| Grants Atk/Res+4. Inflicts Def-4. | 5★ | |
| Grants Atk/Res+5. Inflicts Def-5. | 5★ | |
| Grants Atk/Res+7. Inflicts Def-5. | 5★ | |
| At start of turn, if any foe’s Res ≤ unit’s Res-3 and that foe is adjacent to another foe, inflicts Res-3 on that foe through its next action. | 5★ | |
| At start of turn, if any foe’s Res ≤ unit’s Res-3 and that foe is adjacent to another foe, inflicts Res-5 on that foe through its next action. | 5★ | |
| At start of turn, if any foe’s Res ≤ unit’s Res-3 and that foe is adjacent to another foe, inflicts Res-7 on that foe through its next action. | 5★ | |
| At start of player phase or enemy phase, inflicts Atk/Res-6 and 【Discord】 on foes with Res less than unit's Res and that are within 2 spaces of another foe through their next actions. Inflicts penalty on foe's Atk/Res during combat = number of foes inflicted with 【Discord】 within 2 spaces of target, including target, × 2, + 4 (max 10) and deals damage = 15% of unit's Res (excluding area-of-effect Specials). |
5★ | |
| Inflicts Atk/Res-1 on foe and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit during combat. | 5★ | |
| Inflicts Atk/Res-2 on foe and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit during combat. | 5★ | |
| Inflicts Atk/Res-3 on foe and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit during combat. | 5★ | |
| Inflicts Res -3 on foes within 2 spaces through their next actions at the start of each turn. | 5★ | |
| At start of turn, inflicts Atk/Res-3 on foes within 2 spaces through their next actions. | 5★ | |
| At start of turn, inflicts Atk/Res-4 on foes within 2 spaces through their next actions. | 5★ | |
| At start of turn, inflicts Atk/Res-6 on nearest foes within 4 spaces through their next actions and grants Atk/Res+6 to unit for 1 turn. | 5★ |

| Value of Skills | ★★★★☆ |
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Legendary Deirdre has Still Water 4, Atk/Res Tempo 3, Atk/Res Discord, and Atk/Res Menace as inheritance options.
Prioritize Atk/Res Discord when using Legendary Deirdre for inheritance.
| List of Source Heroes | The Best Fodder Units |
If you have feedback about this hero page, let us know in the comments section below!
Legendary Deirdre is a limited time Hero who can be pulled from a Legendary Hero 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) |
Erica Mendez |
|---|---|
| Illustrator | Haimura Kiyotaka |
| Appears In |
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| Heroes from Focus - Legendary & Mythic Hero Remix: Legendary Deirdre | |||
|---|---|---|---|
Legendary Lilina[9.0/10] |
Legendary Sigurd[8.5/10] |
Legendary Deirdre[9.0/10] |
Aided Reginn[9.0/10] |
Legendary Edelgard[8.5/10] |
Legendary Byleth (M)[8.5/10] |
Mythic Medeus[9.0/10] |
Arval[8.5/10] |
▶︎Return to the Blue Heroes Page
| Close-Range | Ranged |
|---|---|
Lance |
Blue Tome |
Blue Breath |
Blue Dagger |
Blue Beast |
Blue Bow |
Legendary Deirdre Builds and Best IVs



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