Your arcane strike now infuses your weapon with shadowy energy.

Prerequisite: Arcane Strike, caster level 7th

Benefit: When you use the Arcane Strike feat, your weapons are also considered silver and cold iron for the purpose of bypassing damage reduction. In addition, you may choose to have the bonus damage dealt by Arcane Strike be cold damage, as opposed to dealing the weapon’s damage type. This cold damage does not stack with other cold effects, such as a frost enchantment, but is multiplied on a critical hit.