I still think the current Gevura is really good, you just need to bring it to the same level as the new Death Sentence (e.g. CD reset when enemy dies while under the debuff), since it doubles the damage cap, has a large AoE and is enough for normal farming (falls off in boss battles,though, because party members steal the debuff effect).
If they changed Gevura to some useless stat reduction skill, I’d abandon Kabbalist because it just offers too less then to be considered for a build option.
It would be better to change Tree of Sephiroth [with a skill change attribute they promoted] into a debuff skill that decreases a certain stat depending on the number of Gematria & Notarikon.
There is self-utility with Ein Sof and the Class attributes, the damage is crap,though, especially if you consider the slow Merkabah to have the maximum aura effect. The Class currently is more of a survival tool than a viable Class option since all the adjustments went around the Class but never boosted itself.
No idea what the new Class identity could be if they don’t buff the old number&Merkabah focus.
E.g., Merkabah could get increased durability [the attribute is already there so it could be reintroduced] and auto-provoke on cast via an enhancement attribute (level 100 = 66 HP durability) to make it the tank that the initial Rank 8 introduction promised.
Gevura needs an enhancement attribute like Death Sentence and a similar CD reduction attribute (maybe -1 second CD time every time you hit an enemy affected by the Gevura debuff, meaning every count reduction reduces your CD time).
This way the CD reduction also works vs Boss monsters, but only reduces up to 9 seconds.
It would also perfectly fit with the math theme of Kabbalist and make a nice combo with Nahash
(10 enemies + Gevura = 30 seconds CD reduction within 2 seconds, allowing you to spam Gevura to ± double the damage of Nahash)