Wormwood Treefolk
Creature — Treefolk4/4$4.58
: 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.) : 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.)
Legal in Commander