Clerical Mana Reductions -- 320

[Zelys-DFKH]

Would be great to have an option to keep 320 going throughout a Waggle.
320 costs 20 mana and returns that 20 mana over 30 seconds (so costs nothing). During those 30 seconds, all spells costing less than 20 mana get a 20%+ mana reduction but average about 25%, so it's extremely useful to use throughout a Waggle operation. The 30-second duration is also its cooldown, so re-cast once it's done if waggle continues.