One of scholar ability to cross-class skill is Cleric Stance, its literally useless
its more harmful than useful,

Level 39 scholar,

Int = 226
Mind = 202
Healing Magic Potency = 202
Adloquium = 250 - 264 range

Using Cleric Stance cross-class ability

Int = 202
Mind = 226
Healing Magic Potency 226
Adloquium = 221 - 231 range

so without Cleric Stance, you dps more with your dot, and heal more
with Cleric Stance, you dps less and heal less, all because the ability itself.
it work great as a Conjurer, since your stats should be put into MND, you do
more damage, heal less.

As a Conjurer the mechnic work as intended sacrificing healing for dps.

But as a Arcanist/Summoner/Scholar your main stats is INT, using it thinking
the swapped higher INT into MND would boost your heal, have a opposite effect
you do less damage cause of less INT, even with the 10% damage boost, and heal
even less while in that stance cause of the -20% healing.

Its a wasted ability made avaliable to a scholar. the only other useful thing to pick
is Protect / Aero / Stoneskin (meh - cause of Adloquium buble). it should be taken off the list of aviable cross-class skill. The mechanic of Cleric Stance as a scholar is broken borked, work fine as a cleric.

Im hoping it was an oversight they made the skill avaliable for the scholar to cross-class
so until then, i recommend anyone who is a Scholar not to waste a slot on the skill thinking it would boost your healing.