Hello Fellow Warlocks
I haven't seen any updated Destro guides on the forums after our SP nerf so here is what i found out so far.
This is a quick Straight Forward guide for Destro
STATS: Hit Cap 17%>INT>Haste cap around 1270>Mastery>Crit
GLYPHS: Immolate,Conflagrate,Imp or Incinerate. I prefer Imp
ROTATION: Open with Imp Soulburn>Coe>Immolate>Bod>CB>Conflag>Incinerate Filler.
Keep Improved soulfire buff up when above 80% health.This will soon change so prepare for it too be part of your rotation the entire fight.
Soulfire Whenever Empowered Imp Procs.
When Below 20% i include Shadow burn in my rotation.
Use DoomGuard when hero pops
TALENT SPEC:2/3/31 you no longer need Imp SP
:GEMS,REFORGE:Replace your blue int/spirit gems with int/hit.If you have too choose between reforging or gemming hit too reach the hit cap then choose reforge.This is because INT>Mastery and your gems have INT, reforge gives mastery.
Once Hit capped reforge until your haste capped. This is when you can start reforging mastery.Also when reforging replace your spirit first then crit and if haste capped replace your haste with mastery.
Hope this helps