Whiteout Invocation

Lands don't untap during their controllers'
untap steps.
Cumulative upkeep—Put a {s} token onto
Whiteout Invocation: put a frostbite token onto
X target creatures where X is equal to the
number of {s} tokens on Whiteout Invocation.
If a creature has 3 or more frostbite counters,
bury it. If a player taps a land, they lose 1 life for
each snow counter on Whiteout Invocation.
"Where it comes, where goes, only the Winter knows..."