This is a guide to clearing the Infernal and Lunatic maps for Ymir & Eir in Fire Emblem Heroes (FEH). To see strategy for defeating Ymir & Ascended Eir, enemy information, as well as the best units and party to use, read on!

Ymir and Ascended Eir Strategy Overview

Enemy Units	Ymir Ascended Eir
Recommended Level	Lv.40
Difficulty	Infernal Lunatic Hard
Conditions	Condition 1: All 4 units must survive. Condition 2: You cannot use Light's Blessing
Dates Active	09/26/2024 - 10/04/2024

Initial Unit Placement

Infernal	Lunatic

Infernal Enemy Information

A Ymir		HP 61		Atk 63		Spd 29		Def 38		Res 37
		： Everliving Breath ： Rally Up Atk+ ： Miracle					： Atk/Res Unity ： A/R Near Trace 3 ： Everliving Domain ：- ：-
B Ascended Eir		HP 57		Atk 60		Spd 49		Def 17		Res 39
		： Ymir, Everliving ：- ： Draconic Aura					： Atk/Spd Catch 4 ： Mystic Boost 4 ： Sparkling Boost ：- ：-
C Red Thief		HP 56		Atk 54		Spd 53		Def 13		Res 29
		： Miasma Dagger+ ：- ： Moonbow					： Verge of Death ： Spd/Def Tempo 3 ： Savage Blow 3 ：- ：-
D Blue Cavalier		HP 47		Atk 55		Spd 30		Def 13		Res 42
		： Blárfox+ ： Reciprocal Aid ： Iceberg					： Still Water 3 ： S/R Far Trace 4 ： Ward Cavalry ：- ：-
E Lance Cavalier		HP 62		Atk 51		Spd 27		Def 35		Res 33
		： Barrier Lance+ ： Swap ： Sacred Cowl					： Distant Def 4 ： Def/Res Snag 3 ： Goad Cavalry ：- ：-
F Sword Fighter		HP 68		Atk 50		Spd 40		Def 36		Res 24
		： Instant Sword+ ：- ： Godlike Reflexes					： Atk/Spd Excel ： Drag Back ： Time's Pulse 3 ：- ：-

Lunatic Enemy Information

A Ymir		HP 53		Atk 59		Spd 26		Def 35		Res 34
		： Everliving Breath ： Rally Up Atk+ ： Miracle					： Atk/Res Unity ： A/R Near Trace 3 ： Everliving Domain ：- ：-
B Ascended Eir		HP 49		Atk 56		Spd 45		Def 16		Res 35
		： Ymir, Everliving ：- ： Draconic Aura					： Atk/Spd Catch 4 ： Mystic Boost 4 ： Sparkling Boost ：- ：-
C Red Thief		HP 46		Atk 48		Spd 46		Def 12		Res 29
		： Miasma Dagger+ ：- ： Moonbow					： Life and Death 3 ： Spd/Def Tempo 3 ： Savage Blow 3 ：- ：-
D Lance Cavalier		HP 49		Atk 48		Spd 24		Def 28		Res 30
		： Barrier Lance+ ： Swap ： Sacred Cowl					： Distant Def 3 ： Def/Res Snag 3 ： Goad Cavalry ：- ：-
E Sword Fighter		HP 55		Atk 47		Spd 34		Def 33		Res 22
		： Instant Sword+ ：- ： Godlike Reflexes					： Atk/Spd Clash 3 ： Drag Back ： Time's Pulse 3 ：- ：-

Damage Calculator Tool

Ymir and Ascended Eir Strategy

Use a Hit and Run Strategy!

This map has no reinforcements and no refresher foes, making a Hit and Run strategy viable.

Stay out of the range of the enemy units on the first turn while repositioning your team, since the enemies will not engage until you step into their threat range. Once ready, initiate on any of the generic enemies using a ranged unit with 3 movement, and then use movement Assists, refresher assists, and Canto effects to retreat and get your units out of range.

The enemies will then approach your units but be unable to reach them. Ymir may also use Rally Up Atk+ and then retreat using her own Canto effect, placing her out of range of her allies and preventing Everliving Domain from granting them a Miracle effect.

Use the next turn to defeat as many foes as possible, taking advantage of Ymir being out of range of her allies. Prioritize staying out of range of the enemies while clearing the map, and pick the enemies off one at a time.

Alternatively, Use a Tanking Strategy!

You can also adopt a tanking strategy to clear this map, as none of the enemies in this map are too threatening except for Ymir and Ascended Eir. However, they are both Green units, allowing you to use a Red tank unit to enemy phase your way to victory.

Use the first few turns to set up your formation, and then place your tank unit in range of the enemies while keeping the support units out of range. With enough support, the generic enemies will fall in one round of combat each.

Ascended Eir may be able to survive with her Miracle effect if your tank unit cannot attack twice. To prevent this, either run Fatal Smoke 4 if you have it, or use a unit that can attack twice, either through outspeeding or through a guaranteed follow-up attack.

Best Units for Ymir and Ascended Eir

Player Phase Units With Multiple Actions

Unit Name
Winter Edelgard	Lance Armored Black Yule Lance creates 【Divine Vein (Flame)】 tiles, grants Special cooldown charges pre-combat, and cuts the effectiveness of enemy damage reduction skills. Raging Tempest grants mobility and one additional action after combat. Inheriting Galeforce can grant a third action per turn.
Summer Edelgard	Sword Armored Regal Sunshade's brave effect can quickly eliminate enemies. Raging Storm can grant one additional action after combat. Inheriting Galeforce can grant a third action per turn.
Legendary Edelgard	Axe Armored Raging Storm can grant one additional action after combat. Inheriting Galeforce can grant a third action per turn.
Brave Felix	Sword Infantry New Levin Sword accelerates Special by 2, opening up either area-of-effect spam or quick Galeforce. Lone Wolf can grant up to three actions in one turn.
Bridal Sharena	Lance Cavalry Incredibly mobile with United Bouquet granting movement+1 and Forever Yours granting 【Canto (Dist, +1; Max 4)】. Both Forever Yours and Duo Skill generate additional actions while refreshing Canto.
Summer Gullveig	Red Tome Cavalry Can act up to four times in one turn with Golden Sunlight, Time and Light, and her Duo Skill. Flared Sparrow leaves behind 【Divine Vein (Flame)】 terrain, softening up enemies for future engagements.
Ninja Sanaki	Red Tome Cavalry Radiant Scrolls' brave effect can quickly defeat enemies. Duo Skill grants herself an additional action.
Ninja Corrin (F)	Green Tome Cavalry Ninjutsu Scrolls' brave effect can quickly defeat enemies. Duo Skill grants herself an additional action.
Ninja Laegjarn	Blue Bow Flying Flamefrost Bow's brave effect can quickly defeat enemies. Duo Skill grants herself an additional action.
Fallen Chrom	Sword Cavalry Arcane Devourer has Special acceleration, allowing an easy Galeforce trigger. Fate Unchanged... allows a Reposition effect while inflicting 【Exposure】onto multiple foes.
Brave Chrom	Lance Cavalry Geirdriful grants bonus stats and Special cooldown charges in combat. A Fate Changed! allows a Reposition effect while granting Brave Chrom an extra action and copies ally's bonuses, granting them to himself.
Legendary Leif	Colorless Bow Cavalry Meisterbogen's brave effect can quickly defeat enemies. Njörun's Zeal II grants himself an additional action when triggered.
Gullveig	Colorless Tome Cavalry Quietus Gullveig and Time is Light grant herself additional actions after combat. Flared Sparrow leaves behind 【Divine Vein (Flame)】 terrain, softening up enemies for future engagements.

Savior Tank Units

Winter Byleth (M)	Sword Armored Holy Yule Blade decays foe's Specials and grants multiple stat bonuses. Supreme Heaven deals bonus damage against dragons and beasts and also grants additional damage reduction.
Brave Corrin (F)	Colorless Breath Armored Multiple damage reduction effects and the 【Divine Vein (Stone)】 effect paired with high Spd allow her to survive multiple engagements.
Brave Hector	Lance Armored The king of blue tank units. Can counterattack at a distance, deny enemy follow-ups, and has his own follow-up attack.
Ascended Idunn	Blue Breath Armored Guaranteed follow-up attack. Weapon is comparable to Brave Hector's refined Maltet. Can neutralize penalties inflicted on her.
Brave Edelgard	Axe Armored High mobility for an armored unit. Incredibly sturdy with refined Flower Hauteclere and Black Eagle Rule granting multiple defensive effects.
Caineghis	Colorless Beast Armored Refined Lion King Fang grants multiple defensive effects and guaranteed follow-up attacks on both phases. Nullifies buffs from ranged units.

Support Units

Unit Name
Elimine	Staff Flying Grants damage reduction, healing, and can shut down "At start of turn" effects of foes in cardinal directions upon winning a Res check.
Halloween Flayn	Staff Cavalry Kitty-Cat Parasol grants Special cooldown charges, 30% damage reduction, and "neutralizes foe's bonuses to Atk" to nearby allies and can double as an offensive unit with high Atk and a guaranteed follow-up attack.
Flayn	Staff Flying Grants damage reduction and healing.
Brave Lucina	Lance Infantry Grants bonus stats and Special acceleration to nearby allies. Can double as an offensive unit with refined Geirskögul
Corrin (M)	Sword Infantry Grants bonus stats to his Ally Support during combat.
Summer Hilda	Staff Flying Grants Atk+6 and Special acceleration to nearby allies during combat.

Refresher Units

Unit Name
New Year Peony	Green Tome Flying Grants additional Atk to allies in similar cardinal directions. Can use her Duo Skill to grant another action to an adjacent ally.
Peony	Blue Tome Flying Grants additional Atk and Spd to allies in similar cardinal directions.
Legendary Azura	Blue Tome Flying Grants additional bonuses equal to highest bonus on unit and +1 movement.
Hatari Azura	Green Tome Cavalry Grants +6 to all stats and +1 movement to target unit and all adjacent allies. Can use Harmonized Skill to grant extra actions to allies.

List of All Dancers | Heroes with Refresher Skills

User Submitted Units / Parties for Ymir and Ascended Eir

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