Like I said, I don't know if it's the best. Combined with slaughterhouse, you can spam BT almost as fast as your GCD against anything 80% or lower (not hard to do.) Right now subtlety, arms and enhance appear to have the lowest opportunity cost "spammable" snares. For most everything else their snare either has a cast time, a considerable resource cost, or a CD. All you need to do is keep hitting your highest-priority attack after rampage. it gets weaker as number of combatants rises, potentially, but for that you can still opt for the hopscotch talent which is itself very potent for the sort of periodic skirmishes you see in BGs.I dunno, in practice something that wants to snare you is still going to be able to and going to get away by spamming snare every GCD, since you're limited by the 4s CD and they are not. The real advantage is that they aren't going to be doing much else during that time as well. It's going to be a nice surprise talent to be sure, but I think once players get used to it, it'll fall to the wayside.