Yup, I am going suggest few new weapons... Bring it on trolls and supporters, I am ready to face you all!

First off, chaos weapons. We have Chaos cloak and Chaos cowl right? So why no more chaos themed items? Here is few I have made up:

Chaos Shards:
elemental shadow damage shard bomb. Chaos is usually regarded as distortion area between light and dark so this could make some sense. bit slower than Sun shards but bit more damage. 4* version could be called "corrupted Chaos Shards"

girmjun:
Odd name I know. This is basically 4 shot gun that also deals shadow elemental damage. Nothing special in here either.

Why should these be considered: Shadow elemental damage combination would be completely new. It would add more depth and create new plans.

Possible drawback effect: It is hard to control chaos, as it is... Well chaotic. there should be small chance of chaos weapon backfiring and inflicting either status condition or bit of damage.

Drawblade is my own idea. Why not give in sword that has minimal damage in normal swings but has badass charge? Basically, we would get something like katana or other sharp sword that would deal normal damage. Idea is to charge it up and then release attack that will move your knight forward like 5 or 6 squares and deal nice damage on enemies on the way. We could even use this for pvp duels, as loser would be one missing the charge as it would leave knight defenseless for while.