I started maining tank because of the wait times in the duty finder and I have to say it was hard at first but my usual strategy that usually works when I have my equipment up to date at low levels was starting the battle with shield lode and then flash two times then the usual combo then some flashes in between. that usually keeps the hate on me, after I got paladin I just kept the same and once you get shield oath you will have nothing to worry about just try keeping your equipment up to date at all times. I mainly get my equipment from current level levequest which have been very nice to me lately giving me swords and shields more than other items in the treasure chest