Demonology fury generation is bugged!!!
How should it works
Shadow Bolt (+25)OK
Soul Fire (+30, guaranteed to critical)OK
Corruption (+4 each tick)Bugged
Hand of Gul'dan (+2 each tick, have 2 charges)OK
Fel Flame (+15)OK
Drain Life (+10 per sec) / Harvest Life (+10 per sec and +3 per sec on secondary targets)OK
Hellfire (+10 per sec and +3 per sec on secondary targets)Bugged
Firebolt / Felbolt (+8)Bugged Torment (+10)Bugged Lash of Pain / Bladedance / Shadow Bite / Tongue Lash / Legion Strike / Mortal Cleave (+12)Bugged
Firebolt (cast by Wild Imps / Imp Swarm) (+5)OK