The Argus is a cool model, and I own a few of them … more than I’d like to admit. I would have loved to see this model get something like the Charger to force it for a Fury to boost Attack and Damage rolls. But the Argus is a 4 point model with a nice short ranged attack, and a decent special action attack. With Forced Evolution, it can dish out a 18 P+S bite which can’t be sneezed at assuming it hits. With the Gorax’s animus, it gets a boost to MAT and STR, so that makes it an even better missile to hurl at a Warlock or Warcaster … or use it to hunt solos.
MKII Kaya plays differently now, and I’ve only played her once. Seems like I will have to get used to the hit-and-run tactics that she can use with Spirit Door. However, Pack Hunters does help out the Agrus models that I like to run with her, and it makes Feral Warpwolves just plain ugly with an effective 9 MAT. She seems like she’s really a support Warlock now where she’s just using her spells to tend to her mangy flock while they tear the Hell out of the enemy. I need to try her out a few more times to really get a feel for her.