figure that amdanalnar isn't so much a martial art in and of itself but a shadow play of sorts...it looks good; like chinese ballet can pass for martial arts in a lot of flicks. it's 'theater fencing'. you might want to give it an armed combat/chaka prereq. it's described by S John as more theater than sport.
it looks pretty, it can work in self-defense, but it's not a work-a-day fighting style. any amdanalnar practitioner worth their salt would probably have a half-decent chaka hramdal skill, as well.
however...it's your campaign so have at. glad you liked the keth stuff -- pretty much stolen right out of the clans book for icon.
"War is an ugly thing but not the ugliest of things; the decayed and degraded state of moral and patriotic feelings which thinks that nothing is worth war is much worse. A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself."
John Stuart Mill