Originally Posted by
Samsarathedk
Are you even reading what I'm typing? Unholy dks are melee hunters, the majority of their damage comes from Timmy and therefore they will always have him summoned therefore there will not be a sudden "Oh shit, summon my ghoul for a buff" moment.
Now to answer your questions about unholy frenzy, the following has been taken from elitist jerks:
Unholy Frenzy
A 20% melee/range haste buff with a 30 second duration and a 3 minute cooldown is rather impressive - in fact, it would be an 18% or so dps boost for us during its course. Quite good. Unfortunately, the buff is classified as an enrage, and because of that fact it's an even greater damage gain for Fury Warriors, whose mastery amplifies the effect of enrages. They would get at least 25% more out of the buff than we would. When using it on others, try to time it with Heroism or various self-buffs they have such as Death Wish.
If a Fury Warrior isn't present in the raid, then yes, it's best to simply use it on yourself. It's cooldown lines up perfectly with that of Summon Gargoyle, so the two should generally be macroed together or, at the least, used consecutively.
And now for your question about whether you should cast it on your self or your pet, again taken straight from elitist jerks: \
With your Ghoul being one of your highest sources of damage, and the primary tool which sets an Unholy DK apart from other DKs, there are some basic numbers to know about it.
Due to lackluster AI, even with Claw on auto-cast, you Ghoul won't use it as often as it can. To maximize its dps, it's best to macro Claw into your Scourge Strike ability.
Ghouls work like most permanent pets, receiving a portion of your stats and benefitting from any buffs on you – although they, themselves, cannot be individually buffed so as to prevent double dipping.
Ghouls receive 100% of your strength, stamina, haste rating, and hit rating. Glyph of Raise Dead causes your ghoul to receive 140% of your strength and stamina.
Ghouls gain expertise based on your hit rating. If you are half-way to the hit cap, then your pet will be half-way to the expertise cap. The Draenei hit aura does not give expertise to the pet.
Ghouls benefit from the 15% haste of Unholy Presence and the 10% damage of Frost presence.
Ghouls have a 90% passive AoE damage reduction buff which does not show up in the spellbook.
Therefore, your pet gets the unholy frenzy haste buff when you cast it on your self. Thank you and have a good day.