If Caitlyn's ability is activated while she's at a battlefield, and Flash is played in response to move her back to base, does her ability still resolve?

Ruling: Yes, Caitlyn's ability still resolves and deals damage equal to her might to the target. Once the ability is activated and placed on the chain, there is no relation to her position.

Sequence:

• Caitlyn's ability is activated while she's at a battlefield, targeting an enemy unit
• Flash is played in response, moving Caitlyn back to base
• Caitlyn's ability resolves, dealing damage equal to her might to the target (the target is still legal since it's at a battlefield)

Nuances:

• The ability can only be activated when Caitlyn is at a battlefield, but once activated, her position doesn't matter for resolution
• If Caitlyn is returned to hand (e.g., by Gust) after the ability is activated, the ability will do no damage because chain link items have no memory of "my Might"