Limited Bomb

Flying, lifelink, hexproof
When Limited Bomb enters the battlefield, search
your library for four copies of Colossal Dreadmaw
and put them onto the battlefield under
your control. If you can't, sacrifice Limited Bomb
and it deals damage to you equal to its power.
When Wizards of the Coast outsourced its R&D
to the Acme Corporation, everyone knew the results
would be mixed.