Mysterious Tablet

The Mysterious Tablet spawns at the entrance to the Dungeon after Golem is defeated. Players cannot interact with it. It serves only as a graphical prop for the Cultists' ritual and the spawning of the Lunatic Cultist boss.

The Tablet spawns surrounded by four initially-passive Cultists. When all four Cultists are killed, the Lunatic Cultist spawns, destroying the Tablet.

Trivia

 * It appears to have the face of the Moon Lord on it.
 * The Chlorophyte armor's Leaf Crystal may fire at the Tablet, which may lead to the player accidentally making the cultists aggressive.