I've always thought that 3 Grotesques from a Grotesquerie, a Shadowseer with Mask of Secrets and a Haemi with Sump and Scissorhands in a Raider was a pretty neat setup.
Turbo-boost up and Psychic Shriek at -3Ld. Next turn leap out and hit them with 3 Grots, a Fleshbane Mist Stave and (Edward) Scissorhands.
Works with a Farseer too, but he's slightly less killy in CC than a Shadowseer.
Plenty of alternatives for the Haemi too. Any sufficiently killy IC would work nicely
perhaps an Axe Autarch or Glaive Succubus for some AP2.