Honestly just allow fists of havoc to cast thunderclap with a 4x times faster cooldown during super, casting thunder clap takes no super energy but has to cooldown but is 4x faster then normal. And make the fists of havoc thunderclap do a lot more dmg, have longer range, and generate lightning strikes. The others need lots of fixes, not to mention arc and solar warlocks subclass being tedious and cookie cutter at best seeing how they are each a carbon copy of stasis and voids functionality. Daybreak does need a massive buff to everything, nova warp needs a dmg buff in pve and a duration buff (small one not to much) all around, and give it a bit more blast radius (1 foot increase). Give spectral blades a lot more dmg and lesser super energy taken on light attacks in pve. The rest I don't know yet so here is my thoughts.