User blog comment:JmLyan/Sazh, the Ravager/@comment-6120746-20130417121848/@comment-7481207-20130417131832

About the 4 abilities with 5 ranks thing, look at Udyr, he also has 4 abilities with 5 ranks. This is aolved by simply not being able to max all abilities.

And the reason the names are copied from Kingdom Hearts (actually Final Fantasy, but they use the same names for their spells) is because it is based on a class from Final Fantasy 13, as it says above the abilities.