Winter's Approach

Any number of target Bears phase out. (While
they're phased out, they're treated as though they don't
exist. They phase in before their controller untaps
during their next untap step.)
Tap all non-snow creatures. They don't untap
during their controller's next untap step. If {s}was spent to cast this spell, create a Food token.
Bears tend to hibernate for up to 100 days.