Orpheus and Eurydice

Deathtouch, lifelink

Orpheus and Eurydice's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1.

Whenever Orpheus and Eurydice deals combat damage to a player, you may mill that many cards.
If you do, you may put a creature card from among them into your hand.