Red Horse, War

As long as you control 3 or more lands, this
isn't a creature. Creatures you control have Mountainwalk.
{x}{t}; {x} target creature(s) an opponent controls
deal damage equal to their power to any target
player. If one or more were selected, they fight
each other instead.
Landfall—Whenever a land enters the battlefield
under your control, create a Treasure token.