Oka, Ancient One

Trample, deathtouch, defender
When a creature attacks you, it instead fights Oka, Ancient One. Each player bets on one of these creatures. When one of the creatures dies this turn, each player who bet on the surviving creature creates a artifact token named Treasure with "{t}, Sacrifice this artifact, add one mana of any color.", then draws a card. Until the end of your next turn, Oka can attack as though it didn't have defender.
{g}{r}{b}: Oka gets +1/+1 until end of turn. You lose two life.