Russian Winter

Tap all creatures. Those creatures don't untap
during their controller's next untap step. Exile
Russian Winter with four time counters on it.
Suspend 4—{g} (Rather than cast this card from
your hand, you may pay {g} and exile it with four
time counters on it. At the beginning of your upkeep,
remove a time counter. When the last is removed, cast
it without paying its mana cost.)