Rancor Tempest

Flying, Trample
When Rancor Tempest enters the battlefield, discard your hand and draw five cards, you can't cast spells until end of turn.
Rancor Tempest gets +1/+1 for each Instant and Sorcery card in your graveyard.
Whenever Raging Tempest attacks, put the top card of your library into your graveyard.