Goddess of Order

+1: Players can only play one spell, draw one card, attack with one creature, and activate one ability per turn. Multiple affects fail.
-1: Choose a color. Tap creatures opponent's control that have that color and they don't untap on their next untap step.
-8: Exile all creatures in each opponent's battlefield, hand, and graveyard. Spells that share colors with exiled creatures cost 0 to cast this turn.