Valkyrie's Call is a mythic Enchantment card from Foundations (FDN), collector number 371. Current market price: — (foil $34.73), TCGplayer market prices via Scryfall.
Whenever a nontoken, non-Angel creature you control dies, return that card to the battlefield under its owner's control with a +1/+1 counter on it. It has flying and is an Angel in addition to its other types.