This is a guide to battling Demonic Beasts in Fire Emblem Three Houses (FE3H). Read on to learn about monster weaknesses, the best strategies against them, and the best way to battle them without losing units.

How to Beat Demonic Beasts

Demonic Beasts Have Armored Tiles

Enlarge Durable Armor

Enlarge Damaged Armor

There are different armor tiles for Demonic Beasts. Knowing which moves to use against them is the key to victory.

Destroy Their Armor!

Enlarge

Destroying all their armor also seemsto gives you some loot. Try to destroy all of a demon beast's armor for maximum profit every battle.

Demonic Beasts have several layers of armors. This usually depends on the enemy, but most Demonic Beasts have 2 layers of armor and 3 layers of HP. Destroying all of their armor will also cause the beasts to permanently lose their armor, thus severely weakening them.

Expose Destroyed Armor

Broken armor of Demonic Beasts will itself themselves after a few turns if the other armor isn't destroyed as well. Attacking exposed tiles will allow you to deal full damage temporarily.

Use Battallions!

A yellor star ring circles around a demon beast's head if they get stunned. A yellow circle means the beast will recover after one attack while a red circle means the beast will recover after the turn has ended.

Using battalions against Demonic Beasts will stun them, rendering them unable to counter attack for a single attack against them. Use this to your advantage and hit them where it hurts!

How to Destroy Demonic Beast Armor

Use Battalions (Again)

The arrows that appear on a battalion use are the units that get hit by the gambit's splash damage. They damage a demonic beast's armor eventually, making it breakable or even destroying it completely (if it is already damaged)

Battallions can instantly destroy a non-weakened armor from a demonic beast if it is the primary target of the battalion. Other tiles that take damage from the battalion's splash damage will take half damage and weaken the armor.

Attack the armor

Armors can be damaged and/or destroyed with a unit's attacks and magics. Attacking a weakened armor is a good choice to make if there are several demon beasts in the vicinity and you want to conserve your gambit charges.

Use Weapons They Are Weak Against

Demon beasts has a small weapon icon near them. This icon represents the weapon the beast is weak to. Getting hit by a weapon of the same type will instantly destroy the beasts's targeted armor tile.

Whittle them down with a Ballista

A Ballista can immediately destroy a single tile armor of a demonic beast. Make full use of ballistaes in the battlefield to effectively fight against Demonic Beasts.

Fire Emblem Three Houses Related Links

Beginner Guides

Stats and Game Mechanics
What Does Luck Do?	What Does Dexterity Do?
What Does Weight Do?	What Does Charm Do?
What Does Authority Do?	What Does Speed Do?
The Attack Speed Formula	How To Learn and Equip Abilities
Character Guides
Recruitment Guide	Lecture Guide | How to Instruct
Classes That Can Use Magic	List of Unique Classes
Best Classes for Each Character	What Happens When Someone Dies?
How to Change Outfits	-
Battle Guides
How to Beat Demonic Beasts	How to Beat the Death Knight
Gambit Guide	Training Weapons or Iron Weapons?
How Do Linked Attacks Work?	How to Use Divine Pulse
How to Use Auto Battle	List of Terrains
How to Open Doors and Chests	-
Building your Army
Best Characters to Recruit	What Are Adjutants?
How to Repair Weapons	Are Rusted Weapons Worth Forging?
Where to Get Umbral Steel	What is Renown?
Where to Get Advanced Seals	-
Maddening Guides
Maddening Tips and Guide	Best Characters for Maddening
FAQS
What Carries Over To New Game Plus?	How Long Does It Take To Beat FE3H?
Difficulty Levels and Differences	Is There a Weapon Triangle?
Which House Should You Pick?	-