Your search for "Valkyrie Harbinger 374" revealed the following:
Valkyrie Harbinger - Theme Booster (KHM) from Kaldheim, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Tran Nguyen Card Text:Flying, lifelinkAt the beginning of each end step, if you gain 4 or more life this turn, create a...
Valkyrie Harbinger - Resale Promo (Foil) (KHM) from Kaldheim, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Tran Nguyen Card Text:Flying, lifelinkAt the beginning of each end step, if you gain 4 or more life this turn, create...
Valkyrie Harbinger (J22) from Jumpstart 2022, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Tran Nguyen Card Text:Flying, lifelinkAt the beginning of each end step, if you gain 4 or more life this turn, create a 4/4 white...
Valkyrie Harbinger (J25) from Foundations Jumpstart, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Tran Nguyen Card Text:FlyingLifelink (Damage dealt by this creature also causes you to gain that much life.)At the beginning of each end step, if...