When 2 Dazzling Auroras are on board and one triggers, finding a Deadbloom Predator that causes a Showdown, does the Showdown happen immediately or does the second Dazzling Aurora resolve first?

Ruling: The Showdown will not occur until the chain is empty. You must resolve the second Dazzling Aurora and any triggers from it before the Showdown starts.

Sequence:

• First Dazzling Aurora resolves, finding Deadbloom Predator
• Showdown becomes pending but does not start yet
• Second Dazzling Aurora resolves
• Any triggers from the second Aurora resolve
• Finally, the Showdown occurs

Nuances:

• Both Dazzling Auroras trigger at the same time at end of turn, and you can order them as you like
• You cannot place units found by the second Aurora onto the battlefield where Deadbloom Predator spawned because you don't control that battlefield
• If you found another Deadbloom Predator with the second Aurora, you could place it there