Zech13
Official Terrarian
To defeat the Lunatic Cultist, it's easy! You need to kill the regular cultists while you're in the doorway of the dungeon, and when he spawns, he'll follow you into the dungeon, then trap him in the corner with a yoyo and it kills him very easily. Yoyo bags, Yoyo gloves & Counterweights are recommended. And if it helps you, you can bring a heart lantern or bonfire or both to help you if he escapes.