If Ahri Inquisitive attacks a battlefield and the opponent uses Gust on her 'when I attack' ability, does the ability still resolve and lower an enemy unit's might by 2?

Ruling: No, Ahri's ability does not resolve if she is returned to hand by Gust.

Nuances:

• Ahri's ability targets a unit "here" (at the battlefield she's attacking)
• When Gust returns her to hand, "here" cannot be determined because she is no longer at a battlefield location