Shroud of Saints is Broken...and NOT in a good way

[YuiSasaki]

Energy Drain will restore 50% of the damage dealt, as MP back to the caster, this amount is doubled by the Arcanist Trait, "Enhanced Energy Drain." Scholars can Use Cleric stance to increase the damage dealt by Energy Drain to increase MP restoration even more.

As far as I remember Energy Drain restores a set amount of MP. The healing part scales with damage though. ED restores 266Mana each use @ my SCH.