Resistant to Lightning Damage, Dark Damage and Slash Damage.Dragonslayer Armour is an abyssal creature, therefore it is weak to Farron Greatsword and Wolf Knight's Greatsword.During 1st phase they are inactive, during seconds casts spells, that deals Fire Damage and Dark Damage. They can be killed, but it does not affect Dragonslayer Armour, plus they die when Armour is killed. During the whole battle, Dragonslayer Armour is accompanied by 2 Pilgrim Butterflies.Dragonslayer Armour's attacks deals Standard Damage, Strike Damage and Lightning Damage.

This enemy can also be found as a miniboss in the Ringed City DLC, at the far end of the locust-filled swamp, just past the corpses of several Harald Legion Knights.

There's a shortcut nearby and the Warriors of Sunlight statue.

Lothric Castle - Dragon Barracks, after the double wyverns and past several knights.

Sign can be found at the left side of the stairs leading up to boss. You can summon Sirris of the Sunless Realms to help you fight this enemy.Sign can be found in the building to the right of the stairway leading to the boss fog on the right side just beyond the doorway.

You can summon Eygon of Carim to help you fight this enemy.Not Optional: Must be defeated to progress to the Grand Archives.This autonomous suit of armor is guarding the entrance to the Grand Archives, and is assisted by Pilgrim Butterflies, which are actually the ones animating the suit. Dragonslayer Armour is a boss in Dark Souls 3.

Dark souls 3 dragon knight