Quote Originally Posted by Lyth View Post

I'm not sure under what circumstances you would think that missing out on 200 potency from a lost GCD is negligible, but it does add up over an encounter. Also, gap closers generally aren't available while bound, irrespective of job. Only effects like TW and IR negate that effect.
I don't know why you're still throwing around the numbers. Like I said before, at best onslaught's 100 damage is only there to make up for the loss of IB. SP combo is ~200 potency + 10 BG gain per GCD, but requires a full 7.5s combo to hit.

Removing the 100 potency and making it cost 0 would really be all that's needed to make it a worthwhile ability - the 20 cost makes it too awkward to use as is for it's current purpose, and the walking time it saves varies from none to 2 seconds at best. It won't always be 200 potency, and you won't be able to use it every 15s on CD, so the actual benefit is way smaller.