https://minecraft.fandom.com/wiki/Minecraft_Dungeons:Pillager

Behaviour A pillager's crossbow always has the Piercing enchantment, which goes for its armored variant as well.

Walk Similar to skeletons, spiders and geomancers, pillagers move away to keep their distance from the hero.

Basic attack Pillagers are armed with crossbows and are usually slow-moving, preferring to shoot the hero from a distance. However, it deals great pierce damage with a single shot.