Can I attack and cast an action spell in response before passing priority to my opponent, preventing them from playing action spells since mine is on the stack?
Ruling: You can attack and cast an action spell, but after that chain resolves, your opponent can still play an action spell. Both players must pass priority (say they're not playing anything anymore) before moving on.
Sequence:
- You attack and cast an action spell
- Opponent cannot play an action spell in response to your action
- The chain resolves
- Opponent can play an action spell after the chain resolves
- Both players must pass priority before proceeding to the next phase
Nuances:
- Unlike MTG, the opponent gets another opportunity to play action spells after your initial chain resolves, before the phase ends
- The phase only ends when both players pass priority