The Joker

Haste, Unleash.
Whenever Joker enters the battlefield, create two non-legendary token copies of him
You may sacrifice Joker Tokens rather than have this creature card leave the battlefield in any manner.
Whenever Joker enters the battlefield or becomes tapped, each player discards a card. Each player who cannot discard a card loses 3 life and mills 5.
Madness: {0}
"It's Me! Gotham's very own Clown Prince of Crime!"