Mana Pulverizer

Equipped creature has trample and Deplete 1 (Whenever this creature deals combat damage, put a depletion counter on target land. Lands with depletion counters lose all abilities and gain "{t}: Remove a depletion counter.")
Whenever an opponent taps their last untapped land, you may attach Mana Pulverizer to a creature you control.
Equip {2}