Molem, Lord of Tar

Trample
Molem enters the battlefield with a tar counter.
{b}{b}{r}, {t}: Molem deals 2 damage to each
creature your opponents control, put a tar
counter on each creature dealt damage this way.
Whenever an opponent taps a land for mana, put
a tar counter on that land.
For as long as a permanent has a tar counter on
it, that permanent doesn't untap during its controller's untap step unless that player pays 1
life for each tar counter on it.