Eye of Quackzecoatl

The Eye of Quackzecoatl was a mysterious artifact stolen by Negaduck which could steal the powers of a target and give them to the wielder (the victims being reduced in size as well). Feeling that his fellow members of the Fearsome Five were using their powers incompetently, Negaduck used the Eye to steal them for himself, becoming "Mega-Negaduck." The shrunken Fearsome Fivers teamed with Darkwing Duck to stop their boss, and the Eye was shattered, restoring everything to normal.