Natural Weapon Augmentation, Greater
Level: Artificer 6
Components: S, M (An ointment made from rare spices and minerals, costing 200 gp)
As lesser natural weapon augmentation, but you can choose any special ability whose market price is equivalent to a bonus of up to + 5 or up to 200,000 gp, such as vorpal.
Special: Warforged spellcasters cast this spell at + 1 caster level.