I predict you won't be seeing much of "LFG SS" if word gets out.
Soul Bind can PERMANENTLY keep ANY enemy knocked down.
For 5-17 seconds, target foe attacks 30% slower than normal. If that foe becomes the target of a hex while attacking, that foe is knocked down. This is an elite skill.
The obvious combo potential here is, of course, Soul Bind + Parasitic Bond.
In PvE, all enemies, including Casters, will attack when available.
Henceforth, you can keep an enemy infinately knocked down by spamming Parasitic Bond.