I personally cannot cope with too many abilities on my toolbar even if I keybind them. So, my question is:
If I rely solely on a DPS class' core abilities, up to which dungeon difficulty would that be good enough, if any?
I will use CD abilities when they light up, but I will never be good enough to time them at exactly the right moment to get their full potential.
I am happy enough that LFR is my end-game, so talking about 5-man pugs here.