An-Zerrin Ruins 
Enchantment
As this enchantment enters, choose a creature type. Creatures of the chosen type don't untap during their controllers' untap steps.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL