[Chaos]

Since we're in the swing of scrutinizing skills that benefit tank builds, I think it's appropriate to take a look at one of Hexer's offensive spells: Black Bubble.

Much like pre-nerf Wretched Oil, this spell scales up to 70%/70% on what is considered defensive stats. (VIT and RES, respectively) Beyond the fact that it scales off of a core defensive stat (VIT), it also provides the following:
-AoE on the level of pre-Spell Overhaul Sear
-Silence infliction (backed by Hexer's status infliction support)
-Field effect that completely drains FAI

No other infliction spell in Hexer's arsenal can boast its scalings and two solid secondary effects. It is not the inescapable stream of damage that pre-nerf WO was, but Black Bubble serves as one of Hexer's greatest utilities, while packing as much damage as the other (see: not WO) infliction spells. For this, I believe that Black Bubble's elemental scaling should be reduced; not to WO levels, but to (30% + 5% per Rank).

In other words, the elemental scaling would go from this:

50/50 -> 55/55 -> 60/60 -> 65/65 -> 70/70

...to this:

35/35 -> 40/40 -> 45/45 -> 50/50 -> 55/55