Fíli and Kíli, Joyous is a rare Legendary Creature — Dwarf Bard card from The Hobbit Commander (HOC), collector number 1. Current market price: $4.05 (foil $4.12), TCGplayer market prices via Scryfall.
Haste {T}: Add {R}{R}. Spend this mana only to cast Dwarf, Equipment, and Saga spells.