Ok, here is my first attempt at compressing my video of Elweed using KotR. He is the first person with Excalibur, and they gave me some info on it. After using KotR, the player receives Regen of 10 HP / 3 sec. The overall weapon skill is shit as they told me, but the actual sword is incredibly strong. It has the ability to do 3x damage on any hit (about a 10% chance) on any mob. And also on some hits you will see the "Additional Effect: ??? Damage". This is calculated as 25% of the Paladins HP. Truly insane sword.
Hope this link works, if not, I will post it elsewhere or someone else can upload it:
http://home.comcast.net/~homeskillet21/Excalibur.avi
Edit: You do need Divx Codec for this btw