there is a similar combo for Psycologicals using Shock coma and retrograde. The first guy is a chump, at least for bio and psycho for Hydro not so sure.
Well, first hit him once. Then, crystalise him. after he is un-stunned immediately use subversion, and he would have lost health. Every time subversion becomes available, use crystalise first then subversion every time
Thank you sooo much, I'm trying to beat that level too. Zone 7 is hard. Luckily I have the legend achievement and I'm waiting to defeat the corruptor. Which I guess it's going to be soooo hard.