Chapter 18: The Fight for Fhirdiad (Black Eagles) Walkthrough | Fire Emblem: Three Houses

This is a battle walkthrough for the mission The Fight for Fhirdiad from Fire Emblem: Three Houses (FETH, FE3H). Read on to find out about map features, what enemies you will encounter, and tips for winning!

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Chapter 17: Combat at Tailtean Plains Chapter 18: To the End of a Dream -

Chapter 18 (Black Eagles) - Map and Overview

FE3H The Fight for Fhirdiad (Black Eagles) Map.png

Victory Conditions
Defeat the enemy commander.
Defeat Conditions
Your character or Edelgard falls in battle.
# of Player Units 12
# of Enemies 38

Chapter 18 (Black Eagles) - Enemies

FE3H The Fight for Fhirdiad (Black Eagles) Enemy Layout.png

Pos Enemy Pos Enemy
A Church Soldier (Paladin) K Bernhard (Golem)
B Church Soldier (Bishop) L Iris (Golem)
C Church Soldier (Warlock) M Wilhelm (Golem)
D Church/Kingdom Soldier (Fortress Knight) N Chevalier (Golem)
E Church Soldier (Falcon Knight) O Immaculate One
F Church Soldier (Holy Knight) P Cyril
G Church/Kingdom Soldier (Great Knight) Q Catherine
H Kingdom Soldier (Sniper) R Annette
I Gajus (Golem) S Ashe
J Luca (Golem) T Gilbert

Enemy Stats - Normal

The Immaculate One

Level 39 HP 57(x4) Movement -
Class The Immaculate One
Attack Hit Rate Critical Hit
35 96 22
Attack Speed 16 Protection 16 Resilience 17
Avoidance 16 Range 1-5
Weapon Crest Stone of Seiros Dropped Item This enemy has no items.

Cyril

Level 38 HP 56 Movement 8
Class Wyvern Lord
Attack Hit Rate Critical Hit
54 104 31
Attack Speed 22 Protection 32 Resilience 17
Avoidance 67 Range 1
Weapon Brave Axe Dropped Item This enemy has no items.
Battalion Seiros Pegasus Co. Level 5
Endurance 60 Gambit Assembly Uses 2

Catherine

Level 38 HP 56 Movement 5
Class Swordmaster
Attack Hit Rate Critical Hit
56 120 46
Attack Speed 36 Protection 25 Resilience 8
Avoidance 76 Range 1
Weapon Thunderbrand Dropped Item This enemy has no items.
Battalion Indech Sword Fighters Level 5
Endurance 105 Gambit Retribution Uses 2

Annette

Level 38 HP 38 Movement 4
Class Warlock
Attack Hit Rate Critical Hit
55 137 17
Attack Speed 6 Protection 12 Resilience 34
Avoidance 16 Range 1
Weapon Crusher Dropped Item This enemy has no items.
Battalion School of Sorcery SOldiers Level 5
Endurance 75 Gambit Resonant Flames Uses 1

Ashe

Level 38 HP 42 Movement -
Class Sniper
Attack Hit Rate Critical Hit
42 129 28
Attack Speed 13 Protection 19 Resilience 13
Avoidance 23 Range 2-3
Weapon Brave Bow Dropped Item This enemy has no items.
Battalion Gaspard Knights Level 5
Endurance 105 Gambit Assault Troop Uses 2

Gilbert

Level 38 HP 68 Movement -
Class Fortress Knight
Attack Hit Rate Critical Hit
49 97 13
Attack Speed 0 Protection 40 Resilience 10
Avoidance 15 Range 1-2
Weapon Tomahawk Dropped Item This enemy has no items.
Battalion Knights of Seiros Level 5
Endurance 60 Gambit Blaze Uses 1

Enemy Stats - Hard

The Immaculate One

Enemy data will be gathered soon.

Cyril

Enemy data will be gathered soon.

Catherine

Enemy data will be gathered soon.

Annette

Enemy data will be gathered soon.

Ashe

Enemy data will be gathered soon.

Gilbert

Enemy data will be gathered soon.

Loot

FE3H The Fight for Fhirdiad (Black Eagles) Loot Layout.png
The only loot is the Thunderbrand, dropped by Catherine upon defeat.

Location Loot Dropped
1 Thunderbrand

Thunderbrand

This Sword is a Hero's Relic. Well worth it, and required drop anyway. Consider giving it to Jeritza or any sword user with a Crest, as the damage it will do to the Immaculate One will greatly help.

Chapter 18 (Black Eagles) - Chests

FE3H The Fight for Fhirdiad (Black Eagles) Chest Layout.png

Location Chest Contents
1 Prayer Ring
2 Speedwing

Chapter 18 (Black Eagles) - Map Features

Tiles

Tiles Description
Edifice Navigable only by fliers
Rampart Navigable only by fliers
Stairs Difficult for cavalry to traverse
Heal Tile+ 1 Prt, 1 Res, +30% HP each turn for non-fliers

Fiery Floors

FE3H Fight for Fhirdiad Fiery Floor.jpg
The area is covered in Fiery Floor tiles, which cause damage to a unit each turn if a unit is standing on it at the start of the turn. Be careful to avoid these.

Reinforcements

FE3H The Fight for Fhirdiad (Black Eagles) Reinforcements Layout.png
Two Falcon Knights will appear here as your units cross.

Chapter 18 (Black Eagles) - Tips and Tricks

Defeat the Golems as Soon as Possible

The more the Immaculate One roars, the stronger the Golems get. Do not allow them to get stronger and destroy your units by defeating them before the Immaculate One roars.

Use the Heal Tiles

This is a rough, long, and slow battle, so make sure to heal up at any chance. There are a multitude of heal tiles you can stay on to keep the fight going for your units!

Avoid the Fiery Floors

The damage may not be a lot, but it stacks up quicker than you realize and that little bit of health you lose could help you survive a near-fatal attack by the strong units here.

Use Fliers

Fliers are unaffected by the fiery floors, and thus ideal in this level.

Use Stride to Cross Them

To ensure that you don't stay in the fiery floors, use the Stride gambit to increase movement range so that you can cross them in a single turn.

Split Your Healers and Stock Up on Elixirs

Both your main force are side force will be under heavy fire, so it's good to have a healer per side and Concoctions for those who can't be healed.

Do Not Engage Catherine With Melee

Catherine wielding the Thunderbrand is legendary for a reason, and she can destroy anything less than your tankiest units. Make sure to engage her with magic and bows before trying to melee attack her, and even attacking to finish her off in melee is dangerous because she has high avoidance.

Lure Her Away From Her Heal Tile+

Even without the Heal Tile, Catherine is a strong foe. Lure her away by putting your units right outside her attack range. You can determine this by putting your cursor over her and pressing A to keep the range highlighted.

Conserve Battalions

Conserve battalions
The Immaculate One has armor tiles like regular demon beasts. Use Battalions to destroy The Immaculate One's armor to beat her.

Do Not Rush the Battle

Fire Emblem Final Battle
There is no limit to the number of turns you have in this fight. Take it slowly to ensure that you can still have enough power to battle The Immaculate One after dispatching all the other enemies.

Fire Emblem: Three Houses - Related Links

Part 2 - Crimson Flower Battle Walkthroughs

Battle Walkthrough.png
Part 2 - Azure Moon
Chapter 13: The Great Bridge Coup Chapter 14: Capturing Derdriu Chapter 15: Protecting Garreg Mach
Chapter 16: The Siege of Arianrhod Chapter 17: Combat at Tailtean Plains Chapter 18: The Fight for Fhirdiad

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