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

Chapter 17 (Black Eagles) - Map and Overview

Chapter 17 (Black Eagles) - Enemies

Cyan marked forces arrive in Turn 2, Pink marked forces arrive later on.

Loot

Kadmos Shield

Equippable that adds 3 protection, and negates special damage versus armor. Good for Edelgard, as Emperor is a heavy armor class.

Giant Shell

Increases defense by 2 points when used. Very out of the way, so not really worth it.

Chapter 17 (Black Eagles) - Chests

Brave Bow

Allows you to attack twice. Very worth getting, especially if your Bernadetta or whoever is your Archer is used a lot.

Brave Axe

Allows you to attack twice. Very worth getting, particularly for Edelgard, because it disregards speed.

Chapter 17 (Black Eagles) - Map Features

Tiles

Reinforcements

At turn 2, Kingdom reinforcements will come from the north and take position in the cyan area encircled. Afterwards, church reinforcements will arrive in the encircled pink areas.

Chapter 17 (Black Eagles) - Tips and Tricks

Dedue and the Paladin with Sylvain Turn Into Demonic Beasts

Using crest stones, Dedue and the Paladin in Sylvain's group will become Demonic Beasts if you approach them. Dedue will still count as a commander when he is in beast form, so it makes it substantially harder to end the mission.

Defeat Them Right Away to Prevent Transformation

Their transformation only takes place the turn after you approach. If you manage to kill them on the same turn you approach them, you stop their transformation altogether.

Move Away From The Starting Position

Church reinforcements will pop up in the two starting locations for your units, so if you have your backline healers just sitting there, they'll be in danger. Make sure to not leave them behind.

Dismount Your Cavalry

Most of the map is wasteland, so your cavalry units are better off dismounted for more movement.

Defat Rhea to Get Rid of Church Soldiers

Once you defeat Rhea, all church reinforcements will fall back (except the Golem). This makes it more optimal to rush Rhea than to engage all the church forces.

Fire Emblem: Three Houses - Related Links

Part 2 - Crimson Flower Battle Walkthroughs

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