Sun Striker (Critical, Combat)Source Inner Sea Gods pg. 217 (Amazon)
Called by the Dawnflower to strike down the undead, your scimitar becomes an agent of her burning will.
Prerequisites: Critical Focus, Weapon Focus (scimitar), character level 7th, worshiper of Sarenrae.
Benefit: Whenever you confirm a critical hit against an undead creature, your attack bypasses all DR, deals full damage to incorporeal creatures, and acts as though it has the flaming burst weapon special ability.Source Weapon Master's Handbook pg. 25 (Amazon)
Whenever you threaten a critical hit against an undead creature, you can spend up to 4 stamina points to gain a +1 bonus per stamina point spent to confirm the critical hit.