Relentless Grappler (3.5e Feat)
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Relentless Grappler [Class]
Your shifting, sand-like body makes you a formidable grappler.
Prerequisite: Sand Form class ability.
Benefit: While in sand form, you gain a +8 competence bonus to grapple checks, and deal an additional 4 points of bludgeon damage to your opponent each round you maintain a hold or pin.
Related to the Dune Walker (DnD Prestige Class)