The new patch added cross-class combos!

Suppression (EN) + Force Hammer (CM) = Mez Breaker
Graviton Slam (CM) + Lurch (OP) = Ripper
Psychic Lash (OP) + Transference (EM) = Backlash

Ripper will likely be the most common combo being used, because most CM's and OP's have the required skills.