The Wither Cultist is a common mob added by the Mo' Withers mod.
Spawning[]
Wither Cultists spawns commonly in packs of 2 to 4 in all biomes of the Overworld, and spawns commonly in packs of 4 in the Nether.
Description[]
The Wither Cultist looks like a villager, but in Evoker's robes. They are 0.6 blocks wide and 1.95 blocks tall. They are undead. According to the second episode of GlitchReaper's Mo' Withers Mod Author Hangout on YouTube, Wither Cultists are villagers that had worshipped the Wither, which made them an enemy to other villagers.
Behavior[]
The Wither Cultist does not have any special attacks, so their only attack is ramming into a target, doing 3 damage each attack. They will attack players, villagers, and iron golems. They will climb walls to reach their target, like a spider. They do not take fall damage.
Strategies[]
Wither Cultists are not powerful at all. Their stats are the same as that of vanilla zombies. The only thing about them is that they spawn very commonly, so you can get swarmed. If you have anything diamond or emerald that's enchanted with Smite, or a Wither Sword, you can very quickly cut down a swarm of wither cultists. If you don't have that stuff, they are still not difficult, but it will just take you some more time.