Some solid improvements on the Primus to check out, not only from his weaponry, but his skills and abilities are deadly. There are two previews today, one for the Genestealer Cults codex coming this weekend, and the second for the Adeptus Custodes.
Alongside an improvement to his cult bonesword, both his scoped needle pistol and toxin injector claw retain their ability to wound non-vehicle and non-titanic units on a roll of 2+, regardless of their toughness, thanks to the samples of the Primus’ own virulent blood each weapon employs.*