Undying Rage is a common Enchantment — Aura card from Commander Legends (CMR), collector number 205. Current market price: $0.14 (foil $0.27), 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.