Safi'jiiva, Blue Safire

Flying, ward: sacrifice three permanents.
Sacrifice a permanent: put a Power counter on
Safi'jiiva, Blue Safire for the sacrificed
permanents converted mana cost. If that
permanent had no cost, put one Power counter
on Safi'jiiva, Blue Safire instead.
Remove all Power counters from Safi'jiiva, Blue
Safire: It deals that much damage to everything
other than you and itself, or gain that much life
times two.