EARTH'S EMBRACE [Eastern Races, Combat, Martial]

     You can crush opponents when you grapple them. This feat is called tsuchi-do in Tengoku no Niwa.
Prerequisite: Improved Grapple, Str 15+.
Benefit: While grappling, if you pin your opponent, you deal
critical damage (double normal unarmed damage) each round
that you maintain the pin.  You hold your opponent immobile as normal, but you must also remain completely immobile, giving opponents (other than the one you’re pinning) a +4 bonus on attack rolls against you (but you are not helpless).