Gearhead Mercenary

When you cast this spell you may reduce the cost
by {2} by putting a Debt counter on a land you
control without a Debt counter on it. (As long as
the land have a Debt counter on it, the land now
produce only {1} when tap for mana and have {3}: remove Debt counter from land.)
Armored (Prevent the first damage of any source of
damage on this creature.)