Chain Shoes of Oblivion

Feet equipment — Legendary

Your Soul Cubes instead have, " Transform this into Genesis Cube. Then, it gets "At the end of your turn, if this is ready, revert and transform this into Soul Cube.""

Changes: Soul Cube
Slot: Feet
Rarity: Legendary
Set: Frost Ring Arena
How obtained: Frost Ring Arena

What it does is the game's own text; how it was obtained is from the owner's records.