What skill(s) would you change for your class if you could?

[Singularity]

Change Manafication's mana-doubling effect to "your next three enchanted weaponskills cost no mana". Still serves the same purpose, but gets rid of those awkward moments when it comes off cooldown when you're already at 60/60+ and also allows melee combo to be timed during opener such that you don't have to reduce the benefit you gain from your own Embolden in order to time it for everyone else's burst.

Edit: also speed up Displacement's animation so that you can double-weave with it without clipping, or remove the potency from it (like Repelling Shot) so you don't have to.