When attacking a sentry, the alarm is only raised on a 6, as Kage is very proficient at back-stabbing. Also he gets premonitions - sometimes they just encourage him to do bad things, but other times they warn him of danger. He has a 5+ Invulnerable save.
Building an army? Create, validate and share your list with New Recruit, army builder for Warhammer 40,000 3rd Edition and many more games.
Try the builder