I should probably clarify that A+ to A+++ are extremely exceptional and rare. It requires being justified in his legends. Also, the Assassin class are routinely weaker than the others, hence the presence concealment. As it is now, Assassin is incredibly overpowered. Even Heracles reached only A+ on his strength stat.

Also, I forgot to put the description part for the noble phantasm. Please describe what your noble phantasm is and how they work so I can judge how they work.

P.S Master CS is alright.

P.P.S Don't be afraid to ask should you have any questions. ^^;