Illusioner

Illusioner is a spell-casting illager that exists only in Java Edition. It wears a blue robe and fights with a bow, and it has 32 health.

You will never run into an Illusioner while playing. It does not spawn in any biome, it does not join raids, it does not live in woodland mansions, and there is no spawn egg for it: only a command makes one. Type /summon illusioner with cheats on to fight it.

An Illusioner attacks players, villagers and iron golems. Besides shooting arrows, it casts two spells: one makes its target blind for a while, and the other turns it invisible and surrounds it with illusion copies of itself, so it is hard to tell which one to hit. When killed, an Illusioner sometimes drops the bow it was holding.