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Allied Spellcaster (Teamwork)
With the aid of an ally, you are skilled at piercing the protections of other creatures with your spells.
Prerequisite: Caster level 1st.
Benefit: Whenever you are adjacent to an ally who also has this feat, you receive a +2 competence bonus on level checks made to overcome spell resistance. If your ally has the same spell prepared (or known with a slot available if they are spontaneous spellcasters), this bonus increases to +4 and you receive a +1 bonus to the caster level for all level-dependent variables, such as duration, range, and effect.