Gulgamoth, Glacier Melter

Menace
Gulgamoth's toughness is equal to the number
of mountains attacking player controls.
{2}{p/r}{p/r}: Gulgamoth, Glacier Melter gains
+2/+2, trample and haste until end of turn.
{2}{p/r}{t}: Destroy target colorless land, artifact,
or creature.