I really would love to see those 18 seconds usable multiple times.

As it is now, I find it really disturbing to use it, stand still for 3 or 4 seconds and have to move e duto mechanics. And lose everything you haven't used until the CD is up again.

I would love to see the skill that way :

Use it / Stand still 4 seconds / Move / Reuse it immeditaly with no CD but with a 14 seconds instead... and so on until it reaches 0, then have it on cooldown. I wouldn't mind a longer cooldown, as in 3 minutes instead of 1,30min as a counterpart.