Spiked Chain as a weapon, along with the feats, Combat Expertise, Exotic Wpn & Improved Trip and a high strength ... is a tripping monster.
With those feats, a Fighter at 3rd lv gets a +4 to his Trip attempts, can attack adjacent foes, has a 10' reach and when paired with another PC who has a reach weapon like a pole arm ... <shudder>
When combined with the changes to AoO's it makes a deadly ... and IMHO totally BROKEN combat advantage.
When you add Combat Reflexes to that combination ... <shrug>
With those feats, a Fighter at 3rd lv gets a +4 to his Trip attempts, can attack adjacent foes, has a 10' reach and when paired with another PC who has a reach weapon like a pole arm ... <shudder>
When combined with the changes to AoO's it makes a deadly ... and IMHO totally BROKEN combat advantage.
When you add Combat Reflexes to that combination ... <shrug>