Rainbow Crystal Staff

It is a summoner weapon that has an 11.11% chance to be dropped by the Moon Lord. When used, the Rainbow Crystal Staff summons a floating crystal that the player cannot interact with but the crystal shoots beams of energy that deals significant damage to enemies within 60 blocks. The crystal can not detect enemies through blocks but can detect enemies through platforms.

Trivia

 * "The colours, Duke, the colours!" is a reference to a Popsicle commercial.