Trial of Knights

General fragments

Louis IX.

Pyrrhus.

Marcus Agrippa.

Lu Xun.

Which should I choose. I have 495 points left over after redeeming 1 Marcus Agrippa. So my options are - pick two of the remaining 3 at 240 apiece. (Which two?) Or spend it all on blood ares. Or some other option? If I buy fragments I can get a second Marcus.