Scars of Mirrodin :: Koth of the Hammer

Eratta

Legendary Planeswalker — Koth
+1: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land. −2: Add {R} for each Mountain you control. −5: You get an emblem with "Mountains you control have '{T}: This land deals 1 damage to any target.'"

Other Releases

Duel Decks: Vense...