When Yasuo Remorseful's attack trigger targets an enemy unit, and you respond by playing a discipline to increase his might before the trigger resolves, does the ability deal damage based on his might when triggered or when resolved?

Ruling: The ability deals damage equal to Yasuo's might at the time the ability resolves, not when it triggers. If you increase his might with a discipline in response to the trigger, the ability will deal the increased damage.

Sequence:

• Yasuo Remorseful moves to battlefield and attack trigger goes on the chain
• You can react by playing a discipline to increase his might
• The discipline resolves first, increasing Yasuo's might
• Yasuo's attack trigger resolves, dealing damage equal to his current might value

Nuances:

• There is no mechanism in the rules that "saves" or "locks in" the might value when the trigger goes on the chain
• The ability text is only executed when it resolves, so that's when the might value is checked