The Joker

The Joker Has Haste And He's Indestructible
As The Joker Enters The Battlefield
You May Pay His Last Laugh Mana Cost.
If You Do Reveal The Top Card Of Your
Library And Put It In Your Hand Or Graveyard. {t}{5}{g}{u} Last Laugh (As A Last Laugh The Joker Deals 10 Damage To Any Creature)