So if you ally a psyker with skitarii and are able to cast misfortune on a unit ( a malediction that targets a single enemy unit within 24". Whilst the power is in effect, all attacks that hit the target unit have the rending special rule.) Then you are able to get into
CC with the affected unit with a unit of skitarii that has taser goads or lances which have the taser rule (when making an attack with a weapon that has this special rule, a to hit of 6 causes 2 additional hits on the target.) Do the additional hits gain rending? My gut feeling on this is no because the 2 extra hits did not have a dice rolled for them therefore no 6 was rolled for rending to take affect. Yet at the same time I'm conflicted because the 2 extra hits are directly the result of the first 6 rolled. I'm curious to get some more opinions on the matter.