Athreos, God of Passage (SLD 76)

Legendary Enchantment Creature — God • Mana cost: {1}{W}{B} • Secret Lair Drop • Mythic

Indestructible
As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever another creature you own dies, return it to your hand unless target opponent pays 3 life.

Illustrated by Jason A. Engle.