Sauron, the Dark Lord [The Lord of the Rings: Tales of Middle-Earth]

Cost: 3 U B R Ward—Sacrifice a legendary artifact or legendary creature.
Whenever an opponent casts a spell, amass Orcs 1.
Whenever an Army you control deals combat damage to a player, the Ring tempts you.
Whenever the Ring tempts you, you may discard your hand. If you do, draw four cards.