Coven CasterSource Agents of Evil pg. 24
You share your mother’s gift for working in groups.
Benefit: As a standard action, you can attempt a special aid another action (1d20 + your choice of your Intelligence or Charisma modifier; DC 10). If you succeed, you can increase an adjacent spellcaster’s caster level by 1 until the beginning of your next turn. If you also have the covenAPG witch hex, you can apply this bonus to all members of your coven within 30 feet.