Ivoux

The Dark Defender pet also does an excellent job of taking the alpha strike from the Psy Clockwork King in addition to Shadow Fall giving team resistance to Psy damage.

Here is the attack sequence I've used in the past:

1) Cast pet next to the AV to take the Alpha.
2) Hang Darkest Night debuff on the AV.
3) Tell team to attack.
4) Lay down Tar-Patch.
5) Cycle Fearsome Stare, Pet' Gaze, Twilight Grasp and blasts while the team beats down the AV.

Ivoux - Lvl 45 on Virtue