reggin_bolas on 16 December 2014
Hi there, I used to have the same problem as you on casual. The problem is you can't really win against the dragons unless you're on the same level or higher.
There used to be an exploit using Sera's cooldown resetting flask and thousand cuts which destroyed these dragons almost regardless of party level.
Your best bet now is just to level up and only do dragons commensurate with your own party level. Use Sera's thousand cuts and your own focus spell (the first one you get). Having Vivienne or playing as Knight Enchanter is also supposed to help.
Good luck.
