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Fire Emblem Heroes (FEH)

Legendary Hero Battle: Black Knight Abyssal Guide and Recommended Team

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Black Knight LHB Fire Emblem Heroes FEH

This is a guide to clearing the Infernal and Abyssal maps for Legendary Hero Battle - Black Knight in Fire Emblem Heroes (FEH). To see strategy for defeating Legendary Hero Battle - Black Knight, enemy information, as well as the best units and party to use, read on!

Boss Unit for This Legendary Hero Battle
Black Knight - Mortal Legend IconLegendary Black Knight
[9.9/10]

Legendary Hero Battle - Black Knight Strategy Overview

Featured Hero Black Knight - Mortal Legend ImageLegendary Black Knight
First Clear Reward
Abyssal: Gold Mad Spectacles
Infernal: Orb Icon x4
Lunatic: Orb Icon ×3
Hard: Orb Icon ×2
Normal: Fire Blessing Icon x1
Recommended Level Lv.40
Difficulty Abyssal
Infernal
Lunatic
Hard
Conditions Condition 1: All units must survive
Condition 2: Cannot use Light's Blessing
Dates Active 05/30/2025 - 06/13/2025

Unit Placement

Abyssal Infernal
Black Knight LHB Abyssal Fire Emblem Heroes FEH Black Knight LHB Infernal Fire Emblem Heroes FEH

Abyssal Enemy Information

A Black Knight - Mortal Legend ImageLegendary Black Knight HP
87
Atk
79
Spd
23
Def
63
Res
59
Assist Skill Icon:-
Attuned Seal Icon:-
B Troubadour IconTroubadour HP
71
Atk
64
Spd
32
Def
25
Res
61
Attuned Seal Icon:-
C Lance Fighter IconLance Fighter HP
93
Atk
61
Spd
48
Def
47
Res
33
Assist Skill Icon:-
Special Skill IconGlimmer
Attuned Seal Icon:-
D Axe Fighter IconAxe Fighter HP
95
Atk
61
Spd
48
Def
47
Res
37
Assist Skill Icon:-
Attuned Seal Icon:-
E Blue Mage IconBlue Mage HP
82
Atk
64
Spd
49
Def
30
Res
43
Assist Skill Icon:-
Attuned Seal Icon:-
F Sword Fighter IconSword Fighter HP
95
Atk
61
Spd
51
Def
47
Res
33
Assist Skill Icon:-
Attuned Seal Icon:-

Abyssal Reinforcements

Turn 2 Reinforcements

Reinforcements 1 Bow Cavalier IconBow Cavalier HP
88
Atk
66
Spd
43
Def
36
Res
34
Assist Skill Icon:-
Attuned Seal Icon:-
Reinforcements 1 Sword Dragon IconSword Dragon HP
89
Atk
68
Spd
39
Def
50
Res
29
Assist Skill Icon:-
Special Skill IconBonfire
Attuned Seal Icon:-
Reinforcements 1 Red Manakete IconRed Manakete HP
95
Atk
61
Spd
46
Def
49
Res
44
Assist Skill Icon:-
Attuned Seal Icon:-

Turn 3 Reinforcements

Reinforcements 2 Axe Knight IconAxe Knight HP
99
Atk
71
Spd
26
Def
61
Res
33
Assist Skill Icon:-
Attuned Seal Icon:-
Reinforcements 2 Lance Knight IconLance Knight HP
99
Atk
69
Spd
26
Def
65
Res
33
Assist Skill Icon:-
Attuned Seal Icon:-
Reinforcements 2 Lance Fighter IconLance Fighter HP
95
Atk
61
Spd
51
Def
47
Res
33
Assist Skill Icon:-
Attuned Seal Icon:-

Turn 4 Reinforcements

Reinforcements 3 Axe Cavalier IconAxe Cavalier HP
89
Atk
61
Spd
37
Def
44
Res
42
Assist Skill Icon:-
Attuned Seal Icon:-
Reinforcements 3 Green Bat IconGreen Bat HP
78
Atk
60
Spd
61
Def
45
Res
28
Assist Skill Icon:-
Passive Skill A IconTrample
Attuned Seal Icon:-

Infernal Enemy Information

A Black Knight - Mortal Legend ImageLegendary Black Knight HP
75
Atk
70
Spd
17
Def
54
Res
51
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-
B Troubadour IconTroubadour HP
49
Atk
60
Spd
30
Def
23
Res
57
Sacred Seal Icon:-
Attuned Seal Icon:-
C Lance Fighter IconLance Fighter HP
74
Atk
57
Spd
44
Def
43
Res
31
Assist Skill Icon:-
Special Skill IconGlimmer
Sacred Seal Icon:-
Attuned Seal Icon:-
D Axe Fighter IconAxe Fighter HP
76
Atk
57
Spd
44
Def
43
Res
35
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-
E Blue Mage IconBlue Mage HP
61
Atk
60
Spd
45
Def
28
Res
39
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-
F Sword Fighter IconSword Fighter HP
76
Atk
57
Spd
47
Def
43
Res
31
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-

Infernal Reinforcements

Turn 2 Reinforcements

Reinforcements 1 Bow Cavalier IconBow Cavalier HP
68
Atk
62
Spd
39
Def
33
Res
32
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-
Reinforcements 1 Sword Dragon IconSword Dragon HP
68
Atk
64
Spd
35
Def
46
Res
27
Assist Skill Icon:-
Special Skill IconBonfire
Sacred Seal Icon:-
Attuned Seal Icon:-
Reinforcements 1 Red Manakete IconRed Manakete HP
76
Atk
57
Spd
42
Def
45
Res
40
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-

Turn 3 Reinforcements

Reinforcements 2 Axe Knight IconAxe Knight HP
81
Atk
67
Spd
23
Def
56
Res
31
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-
Reinforcements 2 Lance Knight IconLance Knight HP
81
Atk
65
Spd
23
Def
60
Res
31
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-
Reinforcements 2 Lance Fighter IconLance Fighter HP
76
Atk
57
Spd
47
Def
43
Res
31
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-

Turn 4 Reinforcements

Reinforcements 3 Axe Cavalier IconAxe Cavalier HP
68
Atk
57
Spd
34
Def
40
Res
38
Assist Skill Icon:-
Sacred Seal Icon:-
Attuned Seal Icon:-
Reinforcements 3 Green Bat IconGreen Bat HP
57
Atk
56
Spd
57
Def
41
Res
25
Assist Skill Icon:-
Passive Skill A IconTrample
Sacred Seal Icon:-
Attuned Seal Icon:-

Damage Calculator Tool

Legendary Hero Battle - Black Knight Strategy

Use Player Phase Units With Area-of-Effect Damage!

Using area-of-effect and spread damage is the only way to tackle this map with a player phase strategy, as Legendary Black Knight is just too bulky with his five sources of true damage reduction; six if you attack him with a ranged unit. Abuse his proximity with the generic enemies beside him to spread non-combat damage to Legendary Black Knight.

Legendary Black Knight even starts on a defense tile, which makes a turn one clear nearly impossible.

Emblem Sigurd is the absolute best unit to use on this map if you have him, as he can whittle down Legendary Black Knight's HP while clearing the generic enemies using Override, and also generating an additional action for himself to clear the enemies one by one and retreat to safety with Canto. Sigurd even comes with Fatal Smoke 4 to prevent the Troubadour from healing Legendary Black Knight until he removes it by acting.

When using this strategy, it is important to defeat the Troubadour as soon as possible, to prevent her from healing Legendary Black Knight.

Use heroes that generate multiple actions to defeat all the generic enemies that approach your units, taking opportunities to whittle down Legendary Black Knight with non-combat damage whenever you can.

Eventually, Legendary Black Knight will be brought under 25% HP, which will turn off his 【Imbue】 and 【Reflex】 effects. Keep whittling down his HP with area-of-effect Specials and non-combat damage until you bring him to a low enough HP, most likely 1 HP, where one of your offensive units can defeat him.

Effects that prevent Savior are also viable when using this strategy, allowing you to attack the other enemies with ranged units, potentially even applying area-of-effect damage to Legendary Black Knight. Heroes like Embla, Bridal Embla, Elm, or even Læraðr

An Enemy Phase strategy is the Easiest Way to Win!

Using a tanking strategy with two Savior Tanks and one support is the easiest way to defeat this map, as Legendary Black Knight's poor movement will lead to all the generic enemies rushing in to be defeated before he can be a threat.

Bring a Near Save tank, a Far Save tank, and a well-invested support unit, and park the support unit and your fourth unit on the nearby defense tiles, while placing the Savior Tanks behind them. Simply wait for the enemies to rush in and be defeated, then wait for Legendary Black Knight to approach.

If your Far Save tank has a Null C-Disrupt effect such as Fallen Alear (F), Ice Tribe Fjorm, or even your own copy of Legendary Black Knight, that would be ideal in order to defeat the Troubadour quickly. The Troubadour has a Dazzling Staff refine, preventing counterattacks and will need to be defeated as soon as possible to prevent her from healing Legendary Black Knight.

For your Near Save tank, the ideal option is a tank that can deal even a single point of damage to Legendary Black Knight while surviving Pitch-Dark Luna. Rely on your support unit to constantly heal your tank, and utilize the defense tiles to provide additional bulk against Legendary Black Knight's attacks. Eventually, Legendary Black Knight will fall, even if you have to deal 1 damage at a time.

The ideal supports to bring are those that provides damage reduction and/or healing. Heiðrún is one of the best supports if you have her. Alternatively, Seteth on a budget also works. Their job is to prevent Pitch-Dark Luna from defeating your tanks in one blow. At least one of them should also be able to defeat the Troubadour if your Far Save tank cannot counterattack.

If you have Tina in your barracks, use her. Thief will steal 【Imbue】 and 【Reflex】 away from Legendary Black Knight and grant them to your team, making him easier to defeat. The damage reflection effect of 【Reflex】 will be helpful in whittling down Legendary Black Knight's HP.

Recommended Units for Legendary Hero Battle - Black Knight

Player Phase Units

Unit Name
Sigurd - Of the Holy War ImageEmblem Sigurd Lance Cavalry
Holy-War Spear grants Emblem Sigurd +2 movement (5 total), 【Canto (3)】, and bonus true damage.
Override is an area-of-effect Special that grants an extra action after use.
Felix - Sword Savant ImageBrave 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.
Edelgard - Adorned Eagle ImageValentine's Edelgard Axe Armored
Eagle's Heart has built-in Canto and grants Edelgard an extra action and bonus true damage.
Pure Storm grants an extra action, debuffs enemies, and grants Edelgard bonus true damage.
Inheriting Galeforce can grant a fourth action per turn, but will reduce firepower due to the lack of Armored Blaze.
Edelgard - Snowfall Future ImageWinter 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.
Chrom - Fated Honor ImageBrave Chrom Lance Cavalry
Geirdriful grants bonus Special charges and Special cooldown acceleration, allowing an easy Galeforce trigger.
A Fate Changed! allows repositioning an ally to safety and using the extra action for Brave Chrom to retreat to safety himself.
Elm - Retainer to Embla ImageElm Red Beast Flying
Jaws of Closure inflicts 【Undefended】 on multiple foes after Elm's actions and has tons of bonus true damage to be able to punch through Legendary Black Knight's true damage reduction effects.

Tank Units

Unit Name
Black Knight - Mortal Legend ImageLegendary Black Knight Sword Armored
Pitch-Dark Luna has built-in Null C-Disrupt and deals massive damage.
Final Sword grants 【Imbue】 and 【Reflex】 to improve his bulk and grant damage reflection.
Alear - Red Days Past ImageFallen Alear (F) Green Breath Armored
Fell Blast grants 【Fell Spirit】, which has built-in Null C-Disrupt to deal with the Troubadour early.
Fjorm - Gleaming Ice Pair ImageIce Tribe Fjorm Lance Armored
Ice-Crystal Spear provides multiple defensive effects and a Null C-Disrupt effect to be able to defeat the Troubadour early on.
Hector - Steel Warrior ImageAttuned Hector Sword Armored
Fellowship Blade grants 【Bulwark】 to protect allies and grants Hector bonus true damage and true damage reduction.
Oath of Ostia applies 【Divine Vein (Stone)】 and grants Hector Special skipping and damage reduction piercing.
D Counter Echo allows counterattacks against ranged foes.
Marni - Pining for Praise ImageMarni Axe Armored
A free-to-play unit available using Heroic Grails with a statline heavily focused on tanking.
Praise-Piner Axe neutralizes foe's bonuses, grants damage reduction, and has post-combat healing to loop her built-in Miracle effect over and over again.

Support Units

Unit Name
Elimine - Scouring Saint ImageElimine 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.
Flayn - Silly Kitty-Cat ImageHalloween 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.
Seteth - Seiros Adherent ImageSeteth Lance Flying
Refined Spear of Assal grants Seteth and nearby allies bonus stats, true damage, true damage reduction, and neutralizes foe's bonuses.
Heiðrún - Healing Nectar ImageHeiðrún Green Beast Infantry
Divine Nectar grants the 【Divine Nectar】 status which grants true damage reduction and pre-combat healing.
Tina - Playful Scamp ImageTina Staff Infantry
Thief steals bonus effects, notably 【Imbue】 and 【Reflex】 from Legendary Black Knight, and grants them to your team.

Refresher Units

Unit Name
Peony - Álfar Dream Duo ImageNew 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 - Sweet Dream ImagePeony Blue Tome Flying
Grants additional Atk and Spd to allies in similar cardinal directions.
Azura - Vallite Songstress ImageLegendary Azura Blue Tome Flying
Grants additional bonuses equal to highest bonus on unit and +1 movement.
Azura - Hatari Duet ImageHatari 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

Legendary Hero Battle - Black Knight Abyssal Strategy Example

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An Abyssal strategy example for Legendary Hero Battle - Black Knight is currently unavailable. Stay tuned!

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Comment

1 Anonymous Anonymous 6 months

I used Brave Felix, Emblem Sigurd, Fallen Dedue and Níðhöggr. Sigurd used override to get Black Knight low, Felix and Dedue cleared the other enemies and I used Níðhöggrs' after movement skill to lower Black Knights defenses so Sigurd could come in for the kill.

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