Tenki, the Weather Matrix

When Tenki enters the battlefield and at the beginning of your upkeep, choose one -
• Until the beginning of your next upkeep,
whenever a creature attacks or becomes tapped,
Tenki deals 2 damage to that creature.
• Until the beginning of your next upkeep,
creatures with flying can't attack.
• Until the beginning of your next upkeep,
whenever a creature attacks or activates an ability
with {t} in its cost, that creature doesn't untap
during its controller's next untap step.