Shroud of Saints mana regen should not be static

[Syncness]

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In that case the mana regen part of shroud becomes more and more weaker and would mainly be used as a threat drop with the side benefit of 1060 mana, to let part of a skill die like this doesn't seem like particular great design when they could adjust shroud to have the same mana regen with base level WHM stats, thereby prolonging a skills usefulness. Depending on the formula (which doesn't necessarily need to have great gains from PIE), it could easily make PIE a desired stat instead of a byproduct of limited gear choice.