Gensokyo/Miracle Mallet

The Miracle Mallet is a Hardmode hammer. When swung, it creates five gold bars as projectiles, which will bounce off of tiles and pierce enemies. Enemies hit (either in melee or by the projectiles) will be afflicted with the Midas debuff. The Midas debuff causes affected enemies to drop 10-49% more coins than usual on death. They will glow golden when they have said effect.

It is available for purchase at the Curio Trader after defeating a Tier 6 Boss.

Trivia

 * The Miracle Mallet is used by Shinmyoumaru Sukuna, both as a weapon and for its capability to grant the user's wishes.