When a reaction is played during showdown and the opponent responds with another card, which resolves first?

Ruling: The chain resolves from last to first, meaning the last effect added to the chain resolves first.

Sequence:

• Player A plays reaction "Gust" (bounce a 3 might unit)
• Player B responds with "Discipline" (give a unit +1)
• "Discipline" resolves first (last in, first out)
• "Gust" resolves second

Nuances:

• In this specific case, Discipline could increase a unit's might above 3 to prevent it from being bounced by Gust