Savvas Icestorm

{1}{w}: Target creature gains flying until end
of turn.
{2}{u}: Tap target creature. It doesn't untap during its controller's untap step.
{t}, {2}{w}{u}: Create a 2/1 Air Demon token creature with flying, first strike, and hexproof, or create a 1/4 Ice Demon token creature with retaliate 2.