Wormwood Treefolk is a rare Creature — Treefolk card from The Dark (DRK), collector number 92. Current market price: $4.59, TCGplayer market prices via Scryfall.
{G}{G}: This creature gains forestwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Forest.) {B}{B}: This creature gains swampwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Swamp.)