Tuunbaq

For each land type among snow lands you control, Tuunbaq has landwalk of that type.
{s}{s}{s}{s}{s}, {ut}: Put a -1/-1 counter on target creature for each color of mana spent to pay this activation cost. For each -1/-1 counter you put on a creature this way, put a +1/+1 counter on Tuunbaq.