Ratatoskr Builds and Best IVs

This is a ranking page for the hero Ratatoskr - Mending Hand 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 Ratatoskr.

New Heroes - Book VIII - Ratatoskr and More Featured Heroes
Severa [9.0/10]	Ratatoskr [9.0/10]	Rearmed Lucina [9.5/10]	Laurent [8.5/10]

Ratatoskr Rating and Basic Information

Overall Rating	9.0/10
Reroll Ranking (excluding Inherit Skill)	S (▶Reroll Ranking)
Ranking (including Inherit Skill)	A (▶FEH Tier List)

Ratatoskr - Mending Hand: Basic Information

Color / Weapon Type / Move Type	Blue / Blue Beast / Cavalry
Rarity	5 Star
What Kind of Character Are They?	・Weapon skill grants Canto, Special cooldown charges, and damage reduction. ・Exclusive C skill applies 【Divine Vein (Green)】 to terrain and provides sustain post-combat.

Ratatoskr Skills at 5★

World-Tree Tail Might: 14　 Range: 2 Enables【Canto (２)】. Accelerates Special trigger (cooldown count-1). At start of combat, if unit's HP ≥ 25%, grants Atk/Spd/Def/Res+5 to unit, grants Atk/Spd+X to unit (X = 9, - 3 × number of allies with HP ≤ 40%; min 0), grants Special cooldown charge +1 to unit per attack (only highest value applied; does not stack), and reduces damage from foe's first attack by 40% during combat ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes). At start of turn, if unit is adjacent to only beast or dragon allies or is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2 to unit, inflicts Atk/Def-Y on foe during combat (Y = number of spaces from start position to end position of whoever initiated combat, + 3; max 6), and also, if Y ≥ 5, reduces damage from foe's first attack by 30% during combat.

Luna Cooldown Count = 3 Treats foe's Def/Res as if reduced by 50% during combat.

Atk/Spd Clash 4 If unit or foe initiates combat after moving to a different space, grants bonus to unit's Atk/Spd during combat = X + 6 (X = number of spaces moved by whoever initated combat; max 4.) If X ≥ 2, neutralizes unit's penalties to Atk/Spd during combat.

Beast Agility 4 Removes the condition to transform. Inflicts Spd/Def-4 on foe during combat, and if unit's Spd > foe's Spd, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks during combat, and unit deals damage = 10% of unit's Spd (excluding when dealing damage with an area-of-effect Special).

Mending Heart After unit acts (if Canto triggers, then after unit acts and again after unit moves with Canto), applies 【Divine Vein (Green)】 to unit's space and spaces within 2 spaces of unit for 1 turn. Restores 7 HP to allies within 2 spaces of unit after combat. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+4 to unit during combat, inflicts Special cooldown charge -1 on foe per attack (only highest value applied; does not stack), and restores 7 HP to unit after combat. 【Divine Vein (Green)】 Applies the following effects on space for foes: Foe cannot warp from this space or into this space (does not affect units with Pass skills or warp effects from structures like camps and fortresses in Rival Domains). Inflicts Special cooldown charge -1 on foe per attack (only highest value applied; does not stack). (Divine Vein effects do not stack; replaces any existing Divine Vein effect; Divine Vein effects applied simultaneously cancel each other out.)

Ratatoskr Best IVs

Recommended IVs

Stat	Superboon/Superbane	IV Recommendation
HP (18)		★★★☆☆
Atk (11)		★★★★☆
Spd (7)		★★★★★
Def (12)		★★★☆☆
Res (4)		★★☆☆☆

◯ = 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.

+Spd / -Res

The best IVs for Ratatoskr are +Spd and -Res. Ratatoskr's Spd is quite high at base 46, increased to base 50 with a superboon. Ratatoskr can utilize her high Spd stat to prevent her foe's follow-up attacks and create follow-up attacks of her own.

Ratatoskr's Res is abysmal at only base 21 and no amount of investment will protect her against heavy mage nukers. Res is a safe bane to take.

+Spd for a +10 merge

We recommend +Spd when merging Ratatoskr up to +10 to retain her Spd advantage against her foes.

Ratatoskr Best Builds

General Use / Budget Ratatoskr

HOT
： World-Tree Tail ： Reposition ： Luna ： -	： Atk/Spd Clash 4 ： Beast Agility 4 ： Mending Heart ： Atk/Spd Solo 3 ： -

How to Use, Explanation

Ratatoskr's base kit is already good enough to be a significant offensive presence. Atk/Spd Solo 3 works well upon attacking and Canto can ensure she keeps it activated on enemy phase.

Source Heroes for All Skills

Ratatoskr Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
185
HP	40	Rank: 489/1171
Atk	44	Rank: 152/1171
Spd	46	Rank: 62/1171
Def	34	Rank: 309/1171
Res	21	Rank: 949/1171

Stat Values

Lv 40+10 Stats (5★)

	HP	Atk	Spd	Def	Res	Total
+10 Merges W/ Skill Bonuses	45	63	50	39	25	222
Lv.40 +10	45	49	50	39	25	208

Stats at Lv 40

	HP	Atk	Spd	Def	Res	Total
5★- Adjusted for Skills	40	58	46	34	21	199
5★ Lv.40	40	44	46	34	21	185

Initial Stats (with Skills)

	HP	Atk	Spd	Def	Res	Total
5★ Lv.1	18	25	7	12	4	66

Stat Comparison of Similar Heroes

Hero	HP	Atk	Spd	Def	Res	Total
Halloween Lethe	40	44	47	35	24	190
Halloween Yarne	40	47	45	36	21	189
Eikþyrnir	45	47	16	47	30	185
Summer Nerþuz	40	46	47	33	19	185
New Year Nerþuz	40	45	47	32	21	185
Ratatoskr	40	44	46	34	21	185
Freyr	41	46	16	41	35	179
Eitr	40	44	46	33	16	179
Nerþuz	40	42	47	30	20	179
New Year Yarne	40	43	40	35	21	179
New Year Panne	40	41	44	32	21	178
New Year Lyre	40	37	42	27	28	174
Summer Freyr	41	38	16	38	35	168
New Year Kaden	41	35	39	25	28	168
Freyja	40	38	44	24	22	168
Summer Freyja	40	39	43	25	20	167
New Year Lethe	41	35	41	27	18	162
New Year Selkie	35	31	39	16	40	161
Panne	41	29	34	30	23	157
Yarne	40	35	33	32	17	157
Ranulf	40	30	37	33	17	157
Lethe	41	33	38	26	19	157
Selkie	35	29	38	19	35	156
Kaden	38	32	36	25	25	156

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

Ratatoskr Roles, Strengths, and Weaknesses

Ratatoskr Roles

Ratatoskr - Mending Hand Roles
Close-Physical	Ranged-Physical	Close-Magic	Ranged-Magic
Physical Wall	Magic Wall	Effective Weapon	Movement Assist
Exclusive Skill	All-Range Counter	Recovery	Refresher
Legendary	Mythic	Duo / Harmonized	Resplendent

Ratatoskr 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.

Ratatoskr Strengths

World-Tree Tail grants Canto, Special cooldown charges, and damage reduction

Ratatoskr's exclusive weapon World-Tree Tail grants 【Canto (2)】, providing her post-combat mobility.

In combat, World-Tree Tail grants Ratatoskr Atk/Spd/Def/Res+5 and Atk/Spd bonuses based on how many allies are at 40% HP or lower. To maximize these stat bonuses, keep Ratatoskr's allies healthy by making her attack first or by healing them before Ratatoskr attacks.

World-Tree Tail also grants Ratatoskr Special cooldown charge +1 per attack and 40% damage reduction on her foe's first attack.

Finally, World-Tree Tail has the new cavalry beast transformation effects, which grant her Atk+2, an Atk/Def penalty based on spaces moved from start position to end position, and an additional 30% damage reduction on her foe's first attack during combat. These effects stack with the base effects above and make Ratatoskr deceptively bulky despite her average defensive stats.

Mending Heart applies 【Divine Vein (Green)】 and provides sustain

Ratatoskr's exclusive C skill Mending Heart applies 【Divine Vein (Green)】 to terrain up to two spaces away after each of her actions and after she uses Canto. This modified terrain prevents foes from warping to affected tiles and slows down their Special cooldown charges during combat.

Mending Heart also grants Ratatoskr Atk/Spd/Def/Res+4 during combat, slows down her foe's Special cooldown charges per attack, and restores 7 HP to both herself and her nearby allies after combat.

Ratatoskr Weaknesses

Weak to Beast Effective Weapons

Ratatoskr 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!

Weak to Cavalry Effective Weapons

Ratatoskr takes 1.5x damage from cavalry-effective weapons like Thani or Binding Reginleif, 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!

Heroes with Effective Skills

Should you Unlock Potential?

Should You Unlock Potential for this Hero?	Cannot Unlock Potential

Ratatoskr - Mending Hand Only Appears as a 5 Star Hero!

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

Unlock Potential Tier List

Ratatoskr - List of Skills

Weapons

Skill Name	Might	Range	Effect	Learned At
Whelp (Cavalry)	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 if unit initiates combat, inflicts Atk/Def-4 on foe during combat	5★
Yearling (Cavalry)	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 if unit initiates combat, inflicts Atk/Def-4 on foe during combat	5★
Adult (Cavalry)	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, unit can move 1 extra space. (That turn only. Does not stack.) If unit transforms,	5★
World-Tree Tail	14	2	Enables【Canto (２)】. Accelerates Special trigger (cooldown count-1). At start of combat, if unit's HP ≥ 25%, grants Atk/Spd/Def/Res+5 to unit, grants Atk/Spd+X to unit (X = 9, - 3 × number of allies with HP ≤ 40%; min 0), grants Special cooldown charge +1 to unit per attack (only highest value applied; does not stack), and reduces damage from foe's first attack by 40% during combat ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes). At start of turn, if unit is adjacent to only beast or dragon allies or is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2 to unit, inflicts Atk/Def-Y on foe during combat (Y = number of spaces from start position to end position of whoever initiated combat, + 3; max 6), and also, if Y ≥ 5, reduces damage from foe's first attack by 30% during combat.	5★

Assists

This Hero has no Assist skills that can be learned.

Specials

Skill Name	Effect	Learned At
New Moon	(Cooldown Count = 3) Resolve combat as if foe suffered Def/Res -30%.	5★
Luna	(Cooldown Count = 3) Treats foe's Def/Res as if reduced by 50% during combat.	5★

Passives

Skill Name	Effect	Learned At
Atk/Spd Clash 1	If unit or foe initiates combat after moving to a different space, grants bonus to unit's Atk/Spd during combat = X + 1. (X = number of spaces moved by whoever initiated combat; max 1.)	5★
Atk/Spd Clash 2	If unit or foe initiates combat after moving to a different space, grants bonus to unit's Atk/Spd during combat = X + 3. (X = number of spaces moved by whoever initiated combat; max 2.)	5★
Atk/Spd Clash 3	If unit or foe initiates combat after moving to a different space, grants bonus to unit's Atk/Spd during combat = X + 5. (X = number of spaces moved by whoever initiated combat; max 3.)	5★
Atk/Spd Clash 4	If unit or foe initiates combat after moving to a different space, grants bonus to unit's Atk/Spd during combat = X + 6 (X = number of spaces moved by whoever initated combat; max 4.) If X ≥ 2, neutralizes unit's penalties to Atk/Spd during combat.	5★
Beast Agility 1	If unit's HP = 100%, removes the condition to transform. If unit's Spd ≥ foe's Spd+13, neutralizes effects that prevent unit's follow-up attacks during combat.	5★
Beast Agility 2	If unit's HP ≥ 50%, removes the condition to transform. If unit's Spd ≥ foe's Spd+7, neutralizes effects that prevent unit's follow-up attacks during combat.	5★
Beast Agility 3	Removes the condition to transform. If unit's Spd > foe's Spd, neutralizes effects that prevent unit's follow-up attacks during combat.	5★
Beast Agility 4	Removes the condition to transform. Inflicts Spd/Def-4 on foe during combat, and if unit's Spd > foe's Spd, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks during combat, and unit deals damage = 10% of unit's Spd (excluding when dealing damage with an area-of-effect Special).	5★
Mending Heart	After unit acts (if Canto triggers, then after unit acts and again after unit moves with Canto), applies 【Divine Vein (Green)】 to unit's space and spaces within 2 spaces of unit for 1 turn. Restores 7 HP to allies within 2 spaces of unit after combat. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+4 to unit during combat, inflicts Special cooldown charge -1 on foe per attack (only highest value applied; does not stack), and restores 7 HP to unit after combat. 【Divine Vein (Green)】 Applies the following effects on space for foes: Foe cannot warp from this space or into this space (does not affect units with Pass skills or warp effects from structures like camps and fortresses in Rival Domains). Inflicts Special cooldown charge -1 on foe per attack (only highest value applied; does not stack). (Divine Vein effects do not stack; replaces any existing Divine Vein effect; Divine Vein effects applied simultaneously cancel each other out.)	5★

Ratatoskr as a Source Hero

Value of Skills	★★★★☆

Ratatoskr has Atk/Spd Clash 4 and Beast Agility 4 as good inheritance options.

We recommend keeping at least one copy of Ratatoskr in your barracks at all times due to her status as a Mythic hero.

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How to Get Ratatoskr / Illustrations / Voice Actor / Quotes

How to Get Ratatoskr

Obtained through a Special Summoning Event!

Ratatoskr is a limited time Hero who can be pulled from a Mythic Hero Summoning event. They do not appear in regular summons.

Note: Not currently a featured hero in any Summon events.

Voice Actor and Illustrator Information

Voice Actor (English)	Madeline Dorroh
Illustrator	Kozaki Yusuke
Appears In	Fire Emblem Heroes

Illustration

FEH: Related Guides

Legendary Heroes - Shez: Dual Sword Master

Heroes from Legendary Heroes - Shez: Dual Sword Master
Emblem Ike [9.9/10]	Fallen Lumera [9.5/10]	Legendary Shez (M) [9.5/10]	Nerþuz [9.0/10]
Freyr [9.5/10]	Ratatoskr [9.0/10]	Legendary Robin (M) [9.5/10]	Legendary Alear (F) [9.5/10]
Fallen Nergal [9.5/10]	Arval [9.0/10]	Arlen [9.0/10]	Yukimura [9.0/10]

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All Types of Blue Weapons

Close-Range	Ranged
Lance	Blue Tome
Blue Breath	Blue Dagger
Blue Beast	Blue Bow