Crown of Skemfar is a rare Enchantment — Aura card from Kaldheim Commander (KHC), collector number 13. Current market price: $1.28, TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +1/+1 for each Elf you control and has reach. {2}{G}: Return this card from your graveyard to your hand.