Grokus the Insane

Hellbent - As long as you have no cards in hand,
Grokus the Insane has protection from green,
white, and blue.
You may discard three creature cards rather
than pay the mana cost for noncreature spells.
Discard two cards at random: if a noncreature,
nonland card is discarded this way, you may
put a creature card from your hand onto the
battlefield. It gains haste.