"Modern Masters 2017 Edition", "untap step" (4)
Tap target creature. It doesn't untap during its controller's next untap step.
Draw a card.
When Kor Hookmaster enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.
Flying, vigilance
Players can't untap more than one creature during their untap steps.
Defender
Whenever Wall of Frost blocks a creature, that creature doesn't untap during its controller's next untap step.
Gatherer works better in the Companion app!