What happens when a slayer unit is wiped out on a single I step and takes more wounds than there are slayers left.
Let say a killy unit of ironguts lead by a Tyrant with gw. All attacks from this unit comes at the same time. Lets say the Tyrant does 5 wounds and the rest of the guts do 10. Lets assume there was only 10 slayers left and that all of them was not in B2B. How many slayers can in this case make deathblows against the Tyrant ? It can be any number from 0-5.
The problem here is that models that were not in b2b have been killed but there is no way of knowing who killed them as all attacks happened at the same time and there were more kills than models that could die.
I think the only way to assign deathblows is to allow all deathblows from a single I step to target any enemy that was in b2b at the start of that I step. (This is a bit to good but I do not think there is another solution that works for all cases)
Regarding this, I don't think it's really even an issue.
Your statement "Lets assume there was only 10 slayers left and that all of them was not in B2B" renders the point moot. The step-up rules state that as models die, you pull them from the back rank if possible, then from anywhere on the remaining rank (remove those not in combat first) until you only have command models left.
The remaining Slayers would just slide over towards the attacking Ogre(s), thus bringing them into B2B. Any other interpretation would render the Slayers NOT being B2B and thus impossible to attack by the Ogres. So as long as an Ogre can attack the model, it's in B2B with it.
Unfortunately, the answer to how many Deathblows you'd get against the Tyrant would depend on which Slayers were in B2B with him when they died. Especially since those Deathblows could potentially be assigned against the Ironguts instead, even though they were killed by the Tyrant. See my previous response regarding this.
Maybe an FAQ should be made indicating that the Slayer's Deathblow has to be allocated versus the model/unit that killed him. That makes it pretty cut-and-dried.
Edited by Kohr the Unstable, 10 April 2014 - 05:33 PM.