Arcane Subdomain

As a Move Action you can become a beacon of arcane energy until the end of your next turn. The aura emanates 15 feet from you. All spells cast within the aura either gain a +1 bonus to their caster level or increase their saving throw DC by +1. The caster chooses the benefit when they cast their spell. You can use this ability for a number of times per day equal to your Primary Casting Attribute modifier.

This ability replaces the Hand of the Acolyte Primus of the Magic Domain.