Dio, The Phantom Blood

Deathtouch, Lifelink, Undying
When Dio, The Phantom Blood enters the battlefield, return 2 legendary creatures from
your graveyard to your hand. When those creatures die, they get exiled.
If a creature deals combat damage to you,
you may exile a creature from your graveyard
and make an x/x black zombie token where x is the creature's power and toughness