Undying Rage is a common Enchantment — Aura card from Dominaria Remastered (DMR), collector number 146. Current market price: $0.15 (foil $0.03), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +2/+2 and can't block. When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.