Post, Familiar Stranger

Whenever you commit a crime, put a +1/+1 counter on Post, Familiar Stranger. Then you may exile a card from a graveyard.If a creature card was exiled this way, you may have Post become a copy
of that card until end of turn. This ability triggers only once each turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

“I'm just myself. That's the best way to put it.” - Post the Enchanter