You call that a flameblade?

Prerequisites: Archetype connected to some element, Spell infused strikes, Ability to cast 3th grade spells

Benefit: When using Spell infused Strikes you may choose to substitute the 3rd level sacrifice benefits by converting the entire damage to elemental damage. The element must be corresponding to your class, i.e, Hyperborean - cold, Pyromancer - fire, Thundercaller - lightning. The spell infused strikes also receive the cold/fire/lightning descriptor.