Can a player use multiple reaction spells in sequence if they draw cards between them (e.g., using Stupefy, drawing a card, then using Retreat in response to the same spell)?

Ruling: Yes, a player can use multiple reaction spells in sequence in response to the same spell on the chain, even if they draw cards between casting them.

Sequence:

• Opponent casts a spell (e.g., Icathian Rain)
• Player uses first reaction spell (e.g., Stupefy) which draws a card
• Player can then use the newly drawn reaction spell (e.g., Retreat) in response to the same original spell

Nuances:

• You cannot play spells while another spell is actively resolving - you must respond while the spell is on the chain, before it resolves
• For Sabotage specifically, you must play Retreat in reaction to Sabotage being on the chain; once Sabotage resolves and they look at your hand, it's too late