Paradoxical Undressing

Tap all creatures you control and all creatures
target opponent controls. Those creatures don't
untap during their controller's next untap steps.
Each player who's creatures weren't tapped this
way draws a card.
"Their undressing was accompanied by a muffled screaming of rage in a sinister chuckle. The frost and
ice grew as the haze grew colder and colder and the
night darker and darker."