Master Tonberry (Final Fantasy VII)

Master Tonberry is a very rare enemy in Final Fantasy VII, found only in the Northern Crater when the party enters to seek out the final battle with Sephiroth. Like many other Tonberries past and future, it will counter any attack with Everyone's Grudge, which will cause damage equal to the number of kills a character has amassed x10. It can be Morphed into a Ribbon, one of the game's best accessories.