Mirkwood is a common Land card from The Hobbit (HOB), collector number 188. Current market price: $0.21 (foil $0.26), TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {B} or {G}. {2}{B}{G}, {T}, Sacrifice this land: Put two +1/+1 counters on target Bear, Spider, or Wolf you control. Activate only as a sorcery.