Cosmilamp

The Cosmilamp is a post-Moon Lord summon weapon that drops from Signus, Envoy of the Devourer. It summons a Cosmilamp which follows the player and attacks nearby enemies. Each Cosmilamp takes up 2 minion slots.

The Cosmilamp also has a rare item variant called the Guidelight of Oblivion that drops from Signus as well.

Trivia

 * The Cosmilamp is based off of the Cosmic Lantern that is summoned by Signus, Envoy of the Devourer.