Magma Gallimaufry

Devolve (Whenever a creature enters the battlefield, if that creature's power is less than this creature's power and/or that creature's toughness is less than this creature's toughness, put a -1/-1 counter on this.)
Defender
At the beginning of your combat on your turn, if you own seven or more cards in exile, you may pay {1}{r}. If you do, move a counter from Magma Gallimaufry to another card.