User blog comment:Abyssal Horror/Further help and ideas: Darkness Rising/@comment-9465750-20120528133052/@comment-2253300-20120528144922

I really don't see the Hive mind getting screwed by your psychic devastator thingy. Tyranid Psykers are only conduits for the Hive Mind's power. So you aren't dealing with a collective of little Psykers, but rather a single massive Psyker with many bodies.