Originally Posted by
Exil25
Because of the nature of stacking CDs together, Rune will certainly be the strongest option for pretty much every fight in PvE. Partly because the design is no longer IF for movement and RoP for static fights, but rather RoP for the 10-15 sec of coordinated burst and nothing else coming close. Hell, I've seen some PvP videos on the beta where it is abused for ridiculous burst, especially from Fire mages with some other PvP talents.
I foresee a lot of people being unhappy and I just wish the whole talent tier with RoP, MI, and IF to be replaced in the next expansion. Mirror Images is in an especially bad place because not only does it have the old problems from WoD (bad spec synergy and scaling from secondary stats), but RoP essentially has the same function of a on-demand CD with far better results. I can see RoP in Legion having the same faults as Prismatic Crystal does currently - too much damage, not particularity fun to set up (way better than PC though) and being uncontested on the talent tier.