[+1]: You gain 2 life and draw a card.
[−1]: Tap target creature. It doesn't untap during its controller's next untap step.
[−9]: Tap all permanents target opponent controls. That player skips their next untap step.
Dovin’s second ability can target a creature that’s already tapped. That creature won’t untap during its controller’s next untap step.
In a Two-Headed Giant game, if a player is instructed to skip their next untap step, the entire team skips that step.