While he may be safe in the air, when Kain lands on the ground, he ends up caught by the electric power of that attack. The ground shakes and he cries out as the current strikes him. Ugh... unpleasant... But he can't let it hold him back for long. Kain takes a few deep breaths, steadying himself before shaking his head. No. He'd come here to prove something, and he's going to make sure that happens.

Even if it means he ends up taking some damage at the same time as dealing it out. It'll be worth it, to him. As long as he gets this person to stop bothering Rydia...

"I'm hardly about to leave yet... I was only just warming up!" He jumps, getting airborne again, spinning downward for another aerial attack. After landing, he follows up with some more swift strikes of his weapon. He's definitely not messing around. "I won't leave... until you swear you'll leave Rydia alone!"