Albatross in Flight

Flying
When this creature enters the battlefield, create a number of Lucky Charm tokens equal to your devotion to {w}. (They're artifacts with "{1}, {t}, Sacrifice this artifact: Prevent one point of damage
dealt to yourself or a creature you control.")
Sacrifice X Lucky Charm tokens: Return target creature with mana value X that died this turn
from your graveyard to the battlefield.
When this creature dies, sacrifice all Lucky
Charm tokens you control.