Chain Mastery

Prerequisites: Kyton, Combat Expertise, Weapon Focus (spiked chain)

Benifit: You may use a spiked chain to attempt either a trip or disarm attempt (as opposed to just a trip attempt).  You may also make either a disarm or trip attempt (but not both) as a free action whenever an opponent fails their attack roll against you. This only applies when using Combat Expertise to take a penalty on your attack roll(s).  Only one such disarm or trip attempt may be made per round.  You still provoke an attack of opportunity if you do not have the respective Improved Disarm or Improved Trip feat.