When you play a second Dazzling Aurora and get a Deadbloom Predator from the first Aurora's trigger, does the Deadbloom's showdown resolve before the second Aurora's trigger, and can you place the second Aurora's unit on the battlefield being contested if you win?

Ruling: The second Dazzling Aurora trigger must fully resolve before the Deadbloom showdown can be initiated, because showdowns can only start when the turn is in a neutral open state with no chain items pending. If you get another Deadbloom from the second Aurora, you can place it on the same battlefield the first Deadbloom is contesting since it's still enemy-occupied.

Sequence:

• First Dazzling Aurora trigger resolves, you play Deadbloom Predator on enemy battlefield
• Deadbloom's showdown trigger stages but cannot initiate yet
• Second Dazzling Aurora trigger resolves, you play that unit
• If that unit has a "when you play" trigger (like Mind Splitter), it goes on the chain immediately and resolves
• After all chain items resolve and the game reaches neutral open state, the Deadbloom showdown initiates

Nuances:

• When you play a unit from Aurora's effect, any "when you play" triggers on that unit finalize onto the chain immediately and must resolve before continuing with remaining Aurora triggers
• Abilities can be added to the chain even when other items are still on the chain
• Units resolve as soon as they finalize onto the chain, including when played by effects like Aurora
• The opponent still controls the battlefield until the showdown resolves, so a second Deadbloom from the second Aurora can also be placed there