"Eternal Masters", +m/(ca|do(es)?)n't\suntap/, +!exert (3)
When Kor Hookmaster enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.
Enchant creature without flying
When Roots enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.
Gatherer works better in the Companion app!