Polzamaus, Furnace Peaks

Absorb 5, protection from creatures.
Polzamaus, Furnace Peaks cannot block.
At the beginning of your upkeep, sacrifice a land.
If you cannot, put a -1/-1 counter on Polzamaus, Furnace Peaks.
{t}, add X mana of any color to your mana pool
where X is the number of lands destroyed by Polzamaus, Furnace Peaks.