Sacred Strike
( Book of Exalted Deeds, p. 45)[Exalted]
Your sneak attack is enhanced by your unshakable faith in a good-aligned deity.
Prerequisite
Sneak attack class ability,
Benefit
When you use your sneak attack ability against an evil creature, roll d8s for your sneak attack dice (instead of d6s) and your sneak attack damage is considered good-aligned for purposes of overcoming damage reduction.