I have a question about our artefact. we had the situation with my slann 1 wound left and his general on griffin declares all his attacks in the slann. with his blade of jugement he killed his instantly. after that Incandescent Rectrices triggers and my slann stood up with 3 wounds. Does the attack from the griffin continues or is the attack canceled after the slann dies?
It doesn't say the attack sequence ends, and it doesn't do anything that would make the attack sequence end. The Slann doesn't die, he just regenerates those wounds instead dropping to zero, so... although I hate it to be like that I'd say the enemy can make the rest of his attacks and kill the Slann.
Yes, sadly the Slann can be killed twice in a row. Keep in mind that the only real threat for a Slann should be ranged. No way an enemy should be able to melee our starfrog . thar said, I don't recall the name and i'm not at home, but there is an item that imposes a -1 to the "to hit". Keep the Slann nearby a skinks' screen and enjoy a -2 to be hit.
Yep, that's it. -1 always (shooting and melee), plus the +1 to move is also a nice bonus. It's one ot the best available artefacts.