Can you play a card that you drew mid-chain (e.g., drawing Deny from your own Discipline) in response to an opponent's card that is still on the chain?

Ruling: Yes, you can play a card drawn mid-chain in response to cards still on the chain. When your Discipline resolves and you draw a card, if your opponent passes priority while their Discipline is resolving, you can play the newly drawn card (like Deny) on their Discipline.

Sequence:

• Opponent plays Discipline and passes priority
• You play Discipline and pass priority
• Opponent passes priority
• Your Discipline resolves and you draw a card (e.g., Deny)
• Opponent's Discipline begins resolving
• Opponent can play a new card or pass priority
• If opponent passes priority, you can play the card you just drew on their Discipline