Martial Anelace acts like the other martial weapons, in that the "TP Bonus" makes your weaponskills act as if they had 100 more tp then they'd normally have. If you have 100 tp, your weaponskill will deal damage as if it had 200. If it has 200 tp, then it will act as if it has 300. There's is no bonus if you already have 300 tp. Martial weapons are generally used for jobs that have weaponskills that have strong tp damage modifiers. ground strike, spiral hell are good examples. As far as the martial anelace is concerned, sword weaponskills don't benefit as much as others from the tp bonus. However, some weaponskills like Savage Blade may have a noticable effect in some situations.