Soul of Might

The  is one of the 6 souls. It is dropped by The Destroyer after the Wall of Flesh has been killed in any world. The Soul of Might only drops from the The Destroyer, which is the hardmode version of the Eater of Worlds. The Soul itself is blue in color, and can be used in the creation of various top-tier weapons and armor. It is a hard-to-get item that is used for some of the best equipment in the game.

You will need a total of 90 Souls of Might to craft all items, including a full stack of Light Discs.