I get the impression that this skill doesn't always work as described, unless I'm reading the tooltip wrong. Immunity to snares and immobilizations.. yet I've had quite a few times that I get shield charged / 2H charged and get a small speed hickup when this happens, as if I get snared for 1-2 seconds.
Wonder what is going on with this skill.
Mostly noticed this on a DK in BWB while trying to gtf away from zergs. I'm not breaking the spell by doing attacks, unless it's some DoT that is still ticking on some enemy that is causing this (though I think I've also had the hickups when I hadn't attacked anyone recently... but not 100% sure on this last bit)