Rhea and Byleth Infernal Guide and Recommended Team (Bound Hero Battle)

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

Rhea and Byleth Strategy Overview

Enemy Units	Rhea Byleth (F)
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	06/30/2024 - 07/05/2024

Initial Unit Placement

Infernal	Lunatic

Infernal Enemy Information

A Blue Cavalier		HP 47		Atk 51		Spd 28		Def 18		Res 37
		： Blárfox+ ：- ： Moonbow					： Atk/Spd Catch 3 ： S/R Far Trace 3 ： Fatal Smoke 3 ：- ：-
B Blue Fáfnir		HP 62		Atk 52		Spd 43		Def 40		Res 39
		： Light Breath+ ：- ： Draconic Aura					： Fury 3 ： Dragon's Wrath 3 ： Res Ploy 3 ：- ：-
C Green Manakete		HP 67		Atk 49		Spd 36		Def 34		Res 37
		： Lightning Breath+ ：- ： Dragon's Roar					： Mirror Stance 2 ： Counter Roar 4 ： Inf. Null Follow 3 ：- ：-
D Byleth (F)		HP 67		Atk 57		Spd 48		Def 40		Res 27
		： Creator Sword ：- ： Ruptured Sky					： Fury 4 ： Potent 4 ： Atk/Spd Oath 4 ：- ：-
E Rhea		HP 64		Atk 64		Spd 17		Def 47		Res 50
		： Revealing Breath ：- ： Iceberg					： Atk/Res Scowl 4 ： True Dragon Wall ： Incite Atk/Res ：- ：-
F Axe Knight		HP 81		Atk 58		Spd 17		Def 47		Res 25
		： Slaying Axe+ ：- ： Aegis					： Distant Def 4 ： Hardy Fighter 3 ： D/R Far Save 3 ：- ：-

Lunatic Enemy Information

A Blue Cavalier		HP 39		Atk 47		Spd 25		Def 17		Res 34
		： Blárfox+ ：- ： Moonbow					： Atk/Spd Catch 3 ： S/R Far Trace 3 ： Fatal Smoke 3 ：- ：-
B Blue Fáfnir		HP 49		Atk 48		Spd 40		Def 37		Res 32
		： Light Breath+ ：- ： Draconic Aura					： Fury 3 ： Dragon's Wrath 3 ： Res Ploy 3 ：- ：-
C Green Manakete		HP 54		Atk 45		Spd 33		Def 31		Res 30
		： Lightning Breath+ ：- ： Dragon's Roar					： Mirror Stance 2 ： Counter Roar 3 ： Inf. Null Follow 3 ：- ：-
D Byleth (F)		HP 59		Atk 54		Spd 44		Def 37		Res 25
		： Creator Sword ：- ： Ruptured Sky					： Fury 4 ： Potent 4 ： Atk/Spd Oath 4 ：- ：-
E Rhea		HP 56		Atk 60		Spd 16		Def 42		Res 46
		： Protection Pike+ ：- ： No Quarter					： Atk/Spd Clash 3 ： Wings of Mercy 4 ： Fatal Smoke 4 ：- ：-

Damage Calculator Tool

Rhea and Byleth Strategy

Use a Hit and Run Strategy!

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

The Axe Knight is in range to be defeated by ranged cavalry units on turn one while his Aegis hasn't been pre-charged by Hardy Fighter 3 yet. Do so, and then use your own refresher assists, movement assists like Reposition, or post-combat movement effects like Canto to retreat to safety.

The enemies will then approach your team but be unable to reach your units. You can use the following turns to pick them off at your leisure.

Rhea has very high defensive stats and has both Revealing Breath and True Dragon Wall to help mitigate damage. However, her Spd is very low, and she has no way to prevent follow-up attacks. Bring a unit that can pierce through non-Special damage reduction to attack Rhea and she should fall in combat.

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 Byleth and Rhea's pre-charged Specials.

The only concerning enemies on this map are Rhea with her high bulk and pre-charged Iceberg, and Byleth with Potent 4 granting additional follow-up attacks.

To combat this, ensure your tank unit has an effect that allows him/her to neutralize non-Special damage reduction effects in order to deal maximum damage to Rhea. As for Byleth, she can be dealt with similar to other Sword Infantry units: tank her damage with a high Def Blue unit, or defeat her in player phase using a Blue unit that deals magic damage.

Alternatively, bring a tank unit whose sole purpose is to soak damage, and equip them with as many defensive effects as possible. Then, bring an offensive unit that can neutralize non-Special damage reduction effects; this unit's role is to defeat both Rhea and Byleth and retreat to safety afterwards while the tank unit protects him/her from the other units.

Best Units for Rhea and Byleth

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.
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 Rhea and Byleth

We are looking for user submitted clears!

Let us know about your party and how you cleared the maps in the comments below, via a picture of your team and their skills.

If you have uploaded the walkthrough video on Twitter etc., please enter the URL as well!

FEH Related Guides

Other Bound Hero Battle Walkthroughs

Bound Hero Battles Walkthroughs and Schedule

List of Bound Hero Battles