Nice thread, some useful tips in here
Here's a couple of mine that I don't think anyone has said so far:
Wind Lord Mel'jarak - You can actually Feign Death the Kor'thik Strike (instead of deterrencing it) and take no damage. Needs good timing, I usually press it when I see the DBM yell for being targeted.
Spirit Kings - You can Deterrence and walk right through Flanking Orders without taking damage. Useful on HC if you get yourself in a bad spot, or if you want to squeeze out some more DPS and just pop it when they are about to hit you.