while these changes are welcome i feel the following:

Light arts:
Regen is a good step in the right direction but it feels a bit low for what the game requires in most battles, i would like at least another look over on the increased potency if at all possible, the duration on the other hand is very nice

Dark arts:
Changes to helix is a very mixed feeling, while the reduction in mp is a nice change the spell themselves are still rather underwhelming, and the fact that we are losing them as a unique spell it is hard to grasp what the future is holding(helix 2?) if there is no new helix to come then i will say the potency of these spells is still very weak and the damage over time it creates is very slow so it is a hard to determine at this time.

tabula Rasa(2hr)
the changes for tabula rasa are nice, after the last update i am still very pleased and these fixes are a smooth addition for the use of this powerful sch abuility

Modus verita:
Very nice on the reduced recast, however the issue where it hardly EVER lands on any NM still renderes this ability useless more times then not, while i wish i can say i will now be using this every 3min after this update it is not worth the time just to get a "miss"

Klimaform:
this is the best of the changes in my opinion, while we have given the spell to all jobs, this can only benefit everyone. Being able to increase magic acc full time from the use of a spell is right along the lines of a strategist.

conclusion:
*The regen from sch looks like they will be nice, however the rate of recovery is still a bit low for current content i hope this can be looked over
*The Changes to the helix line of spell are at a bit of a mixed feeling, on one hand it was a unique spell to sch, on the other the spells were very poor, the general rumor going around is that they are planning a new tier of helix so at the moment these changes are hard to comment at current
*Modus Verita STILL does not land