Master Grapple (3.5e Feat)
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Master Grapple [General]
You are an expert at grappling and can even turn your opponent's failed attempts against him.
Benefit: You gain a further +4 on grapple checks that stacks with Improved Grapple. In addition, at any time that someone misses you with a natural attack or an unarmed strike (including a melee touch attack), you may take an immediate action to start a grapple.
Normal: You can only start a grapple on your own turn.
Special: A fighter may select master grapple as one of his fighter bonus feats. A monk may take master grapple at 2nd or 6th level provided they chose improved grapple at 1st.