However, right now compared to other pets the Imp is at a disadvantage. All basic attacks cost energy, but when other pets drop below 120 they just go melee. Since the imp doesn't have a melee attack, he starts bolting at a much slower rate than normal.
Second, I believe Demonic Tactics exists so that the new auto-attack abilities function properly, along with some possible AI tweaks.
Firebolt: Basic attack
Blood Pact: 10% stam aura
Singe Magic: Defensive dispel. Auto-cast: dispels master when stunned, silenced, polymorphed, or feared by magic.
Flee: Jumps to master, removes snares and stuns
Cauterize Master: Does ~1k damage, then heals 12% health over 12 seconds
Torment: Basic attack
Suffering: Taunt. Auto-cast: if the voidwalker's target is not targeting the voidwalker, or if the master gets attacked
Void Reflexes: Passive 10% parry and dodge
Threatening Presence: Intimidates any target you attack, increases threat.
Shadow Bulwark: Temporarily give the Voidwalker 30% health for 20 seconds. Auto-cast: when below 20% health
Shadow Shield: 60% damage reduction for 30 seconds, when attacked do 10k shadow damage and reduce damage reduction by 20%. Auto-cast: when attacked.
Disarm: Disarms for 10 seconds.
Pretty much identical to live, except she'll auto-seduce anything that stuns, silences, or fears you.
Identical to live, except Shadow Bite no longer gets buffed damage for more dots.
Almost identical to live, but he also has the Voidwalker's Void Reflexes and Threatening Presence.
Grimoire of Supremacy Minions:
(note: all of these pets have a 10% buff to damage and health)
Same as Imp, except Firebolt is now Felbolt.
Same as Voidwalker.
Blade Dance: Basic attack
Fellash: Same as Whiplash
Lesser Invisibillity: Same
Mesmerize: Like Seduce, but it works on humanoids, beasts, dragonkin, mechanical, and undead. It also shoots rainbows. Though it's not listed, this ability is channeled.
Tongue Lash: Same as MoP Shadow Bite
Clone Magic: It's Spell Steal combined with Devour Magic
Optic Blast: Same as Spell Lock, but it also does some damage.
Same as Felguard, but some abilities are re-named.