Currently, I'm playing as a rank 9 SCH. My PVP abilities are equanimity, purify, and attainment.

However, even with them I have a hard time surviving against really experienced DPS and tanks. They just give me no room to cast much spells. I tried to abuse as much as I can with Surecast and Swiftcast and the PVP abilities I have but I still get wrecked nonetheless. Meanwhile, my team usually has a very difficult time trying to kill the opponent healer. Is there any sort of trick to survive a constant chain of combos?