Keeping Levitate is irrelevant, but Skill Swap was designed to be able to swap multiple abilities in one action. It isn't up to 3 beams because of triples, it's 7 per swap because of an all abilities environment and the fact that several Skill Swappers (Claydol was in mind when I made it) only have one ability. Only allowing one swap because of one ability would be a ridiculous punishment rather than the buff that was intended.