Can you play Stupefy in response to Void Seeker during a Dreaming Tree conquest showdown, draw cards from Stupefy's resolution, and then play Defy from those drawn cards to counter the Void Seeker?

Ruling: Yes, you can play Stupefy in response to Void Seeker, and after Stupefy resolves and you draw cards, you gain priority again before Void Seeker resolves, allowing you to play Defy if you drew it.

Sequence:

• Dreaming Tree trigger resolves
• Opponent plays Void Seeker
• You react with Stupefy, then pass
• Opponent passes and chain begins resolving
• Stupefy resolves (unit gets -1, you draw cards)
• Opponent (who owns the next item, Void Seeker) gets priority and passes
• You can now play Defy to counter Void Seeker

Nuances:

• Each time an item on the chain resolves, there's a priority window again, starting with the player who owns the next item on the chain
• The Dreaming Tree trigger resolves before Stupefy in this sequence