Hmm, I think you already read the answer Kalashnikovaa wrote in the general section - this is the link anyway
. You won't find opinions that differ substantially form this one. Basically, see how the duel is going, learn to know how and when to use the pushback and the root for the heals, notice when the other is stunned etc... Like she said already, don't try to find a universal pattern for your duels and in arena, it won't work the same on all the players, not even simply in different duels with the same opponent! (because the procs, or a different order in using skills or different luck from critical hits -... and whatever you can think of- can change the situation quite a lot).