Originally Posted by
Quor
Onslaught is a strange beast. It's technically dps neutral for it's cost, with the benefit of the lowest CD of the gap closers on tanks, as well as the longest range. The issue is you lose out on potential better damage, as it's only a gain if you're making up for a lost GCD via the gap closer OR if it's used under IR.
This is in contrast to PLD and GNB, which want to stuff their gap closers into their dps window. DRK is a bit of a middle ground, as they only want to dump their charges under raid buffs, but otherwise are free to keep a charge in the tank as needed. Onslaught is perfectly fine where it is imo, because it's great for utility and ok for damage under the right circumstances. If you remove the cost then it just becomes free damage used on CD, and if you buff it then it just becomes something you use on CD. As it stands now, it's actually a decision that needs to be made instead of something you use as soon as it's available.