The material below is Open Game Content from 3PP Source
Associated Domain: Magic.
Replacement Power: The following granted power replaces the hand of the acolyte power of the Magic domain.
Arcane Beacon (Su): As a standard action you can become a beacon of arcane energy until the end of your next turn. The aura emanates 15 feet from you. All arcane 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 she casts the spell. You can use this ability a number of times per day equal to 3 + your Wisdom modifier.