CC help?

[:1]When I tried H. Deadmines, my Freezing Trap was ignored over and over.
Any tips for who, when, and where to CC would be appreciated... unless I should just ignore CC and burn the mobs?

I discovered the Envoker's Shield was part of the problem. The solution I'm trying is
Tranq > Distract > Freezing Trap. Feels clumsy. There has to be a better solution.

Any tips or advice is appreciated.
Since our CCs have a small setup time, you could probably launch the trap and then quickly tranq them before the trap actually procs. Never actually tried it, but in theory it should work.

Just double click the mob (once to trap, once to target,) fire a tranq shot, and hope the tranq hits before the trap goes off.