Water Scholars/Sanctuary

Problem

Sanctuary is one of the only spells in the water sphere that really is worth having. Aside from heal, the rest is all nice, but semi-trivial. Since it's a major, not a greater, there's very little incentive to actually be a greater water scholar.

Remedy

Make it such that major waters (and all items) provide a sanctuary that only provides a 25-33% damage reduction. Greater water majors can cast it so that it provides 50%. The difference in affects would be shown somehow in the affects list, either by splitting the spell into two spells, or just by having a different name, whatever.