When Dazzling Aurora triggers, is there a window of opportunity to use action speed spells after resolution?

Ruling: No, there is no window for action speed spells after Dazzling Aurora resolves. However, there is a window for reaction speed spells.

Sequence:

• Dazzling Aurora trigger can be responded to with reactions
• After Aurora resolves, if the unit played has a triggered ability, you can respond to that ability with reactions
• If the unit was played to an opposing battlefield with something like Deadbloom, that starts a showdown where both actions and reactions can be played

Nuances:

• You can use reactions in response to the Aurora trigger itself before it resolves