Gobsches Bank's Private Army

As an additional casting cost, put a Debt counter
on target 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.)
This creature has the power and toughness equal
to two time the number of lands with a Debt
counter on them.