The index version of the Haemonculus had the Crucible of Malediction as a wargear option. Interestingly enough, it didn't have a points value, so it was FREE.
Now, using the flowchart in the Designer's Commentary, we are allowed to use Index wargear options, if the option is no longer in the codex version of that model. I think you see where I'm going with this.
Run the Haemy up into range of a few psykers and and pop the Haemy's personal CoM and then spend 2 CP to use the strategem.
My biggest frustration with CoM was it's reliability, seems like having 2 charges now will make this WAY more reliable and even has the potential to flat out remove psykers with a little bit of luck!