Goblin Legion

As an additional cost put a Debt counter on X
target lands you control. (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.)
Legion XX (2 time X) (When this creature come
into play, put XX +1/+1 counter on it. For each
damage dealt to this creature, you must prevent that
damage by removing one +1/+1 counter.)