Athreos, God of Passage

Atreo, Dio del Passaggio (Athreos, God of Passage) (it)

Legendary Enchantment Creature - God | Power/Toughness: 5 / 4 (CMC 3)
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.