Hello - I'm YotKa from Elitist Jerks (theorycrafted diseaseless blood) - I'm not new to mmowned but I'm a "1st time poster" concerning exploits.
The community has helped me for quite a while and I would like to lend a hand.
The exploit is very simple - you summon your ghoul with Glyph of the Ghoul and you change GoG by a glyph that would further increase your dps.
The ghoul keeps the GoG bonuses for the duration of the CD (1m30)
BUT MORE IMPORTANTLY
Keeps the bonuses added by BoK to GoG even after GoG exploit fades away.
I've known this for a long time and only used it on "tight dps fights" since a lexicon was needed to change glyphs.
Rich Death Knights or inscription Death Knights will see a 150-270 dps increase from this.