Is it just me or are Marauders really hard to train?

Actually, it is enhanced with stun mastery if you stun monsters before you SK them, also on the staying power, crusaders and wks use slashblast/powerstrike up til 120 as well :3

I'll underline the key part of the comment...

Wow, you still use Somersault Kick (which isn't enhanced by 2nd and 3rd job skills)

Crusaders enhance it with Combo and WKs enhance it with charges.