Your ability to strike stealthily improves your magical strikes.

Prerequisite(s): Arcane Strike, sneak attack class feature

Benefit: Your levels in classes which grant the sneak attack ability count as increasing your caster level for purposes of determining the bonus you receive from the Arcane Strike feat. A class which both grants sneak attack and increases your caster level is not counted twice. (i.e., a Wizard 3/Rogue 3/Arcane Trickster 4 counts as caster level 10 for Arcane Strike.) In addition, during a round in which you have activated the Arcane Strike feat, your sneak attacks deal an extra +1d6 damage.