Che-kai, Master Mage

Flash, haste, deathtouch
When Che-kai, Master Mage enters the battlefield, exile all creatures(except for this card), lands, artifacts, and enchantsments.
Whenever a card is put into an opponent's graveyard, all opponents lose 1 life.
Whenever an opponent loses a life, put the
top card of their libary into the graveyard.