If I play Discipline in response to an opponent's Void Seeker, and Discipline resolves drawing me another Discipline, can I play that second Discipline before Void Seeker resolves?

Ruling: Yes, you can play the second Discipline before Void Seeker resolves. Before each item on the chain resolves, both players have a chance to play reactions.

Sequence:

• Discipline resolves and you draw a card
• Owner of the next item on the chain (Void Seeker) gets priority
• If opponent passes, you can play the second Discipline
• Void Seeker owner gets priority again
• This process repeats for each item on the chain

Nuances:

• The opponent must not counter your first Discipline for you to get the draw
• You must allow the opponent an opportunity to react after each card is played