It’s random as to which type of skill is recharged, however, Plexxing. In order for it to be marginally effective, you would need to have one of each type of utility equipped which all provide the same effect (which doesn’t exist), and hope that you don’t get unlucky on your 20% chance to possibly not have any of your skills recharged, since you only have four. Otherwise it’s just a wasted trait and would then only be marginally useful.
Rutilus, I don’t think you understand that there’s still a net gain with the change no matter how you look at it. Traited BV would be at 36 seconds before. Now it’s 32.
If you’re comparing the reduction numbers, then by your logic giving BV a 10 minute cooldown would be a buff because then the trait would reduce it by a whopping 120 seconds, but that would just mean your cooldown is still longer lol.
