Esther, Master Cyromancer

Permafrost (When this creature deals combat damage to a creature an opponent controls, tap that creature. It doesn't untap during its controls next untap step.)
{1}{u}{t}: Tap target permanent.
{2}{u}{u}{t}: Tap target permanent: It doesn't untap during its controllers next untap step.
{3}{u}{u}{t}: Tap all other creatures.