WPE Filtering

Well, I successfully changed lightning elemental converter's animation
i used the thunder resist potion's animation.
I used the normal mode on wpe's filter.

search:
001 005 006
C8 55 2F

modify:
005 006
59 2F

it worked fine, yea

question is...

is the header really necessary? (C8)
can you use a skill you dont have?
like say, your a champion. can ya use wpe to get, well enchant poison? or any other skill you dont have?

Im new at this stuff so hope ya'll cooperate ;]
P.S. a guide on filtering in advance mode will be appreciated.

yes it is necessary i think, because it probably say that You use a converter, or an consomable, I don't know about what, so if it wasn't here, every packet who's got 55 and 2f in the 5 and the 6th position would be modified, so it will maybe make something you don't want.

I'm not totally sure aboute what I say, but I think I'm right

Ookay.

I'll continue my search for a guide.

o: