I could see there being potential Kismesis between Leshas and Lyssas. She seems like the sort that would bring up that more angry and frustrated feelings she tends to push deep down inside. Plus they'd have adorably destructive arguments between super strength on one side and anger fueled accidental tremors on the other xD At a minimum the pair could really but heads with out having to worry about significant harm to one another Rocks vs Super strength and such.

PS 
Ah man...folding chair xD I kind of wish I had rolled out my Sea dwelling fight-happy Pro-wrestling/lucha-loving troll. She'd be interested in her for compleatly different reasons xD