Chokehold

When you maintain a grapple, you can take a -5
penalty. If you succeed, you have pinned your
opponent and hold the opponent in a chokehold.
Maintain the grapple as normal. A creature in a
chokehold can't breathe, speak, or cast spells with
a verbal component. An opponent you have in a
chokehold has to hold his breath or begin
suffocating. Any creature that does not breathe,
is immune to bleed damage, or is immune to
critical hits is immune to the effects of your
chokehold. Ending the grapple end