The fact that he has to be very angry to enter rage form and he can't force that anger on himself, someone else has to do it.

/Dons Cap of Comic Geekness
Sorry, but this is wrong. Bruce can make himself angry, *many* examples from TV and comics, and the Hulk can keep himself angry, see Planet Hulk and World War Hulk story lines.
/Removes Cap of Comic Geekness

I agree with removing the Speed and up the Strength as suggested by others.

Would Immortals count against killing in regards to the Laws of Magic?
(I'd say 'no' in my game...)

Also, I agree with the sword not being significant. Immortals have died by non-swords plenty of times. (Xavier, Paul Kincade used dirty tricks and even a hook [as in amputated hand] to kill other immortals.)

I would think that the problem with this is that a character would keep gaining 'power'/'skills'/'knowledge' with each kill. This could unbalance the character unless timed with each advancement. (Which would get old quick.)

Go get your shit done!
Fred rawks da hizzouse!!

Harry's circle used to be silver. I think he even had an iron and silver one at some point.
The new one from the fae smith that costs $5K is from Changes and is new.