Agartha, City of Golems

Pay {2}, Add {w}, {u}, {b}, {r}, or {g}, activate this ability only 5 times per turn.
{1}{t}, Put a Gear counter on target Golem creature you control.
Once per turn you may cast Golem Crusher, Enraged Golem, Primal Golem, Destroyer Golem, or Ferzox, Titan from outside the game. You may only have one of each at a time.