@HungNguyen-bj4xr I don't think so. I think her talent activates on any instance of damage (it can occasionally null poison mist damage) which implies that she actually needs to be hit first before it considers her talent. Edit: also just realised that there would be a bit of anti-synergy with her S2 it it was treated as dodge. Her spike damage from that is on hit, too.
Sometimes I wonder: Would it be broken if Horn's Module extended her range by one tile directly in front of her. Anyway, great clear. Only waiting on my own Blemishine to start with Defenderknights attempts.