I mean... Sacrier's Motion Sickness continues to other characters. The single target damage a 3Sac, Enu, (DPT that can push/Pull high square #s and probably heal), Feca team could produce is wild. It could even make otherwise unviable things like Enuzerker-teleport decent DPT. I had an idea that revolved around using this too, but don't have the patience to make enough Sacs to make it work (and would also have to stop playing Xelor).
Multiple Pandawas stack and can Trigger Dizzy. I saw Elenore use this to great effect.
Fecas Debuffs continue to other characters. As do Sadidas, Masks, Osas, ect.... I just don't think it's a broken mechanic to be able to redirect 6AP in damage on a 29d/ap spell. It's not even that good of a mechanic except in specific setups or fights.
I honestly think this should be a Xelor duo feature and will probably put it in suggestions in the hopes that it becomes functional again.
I guess there's always someone like me trying to think of ways to maximize the system like that. Too bad, I would have enjoyed being comically strong for being smarter than most players about my class. I'm going to rethink my approach, because I may want to lay out slightly differently now.