@Riot, Invert Mordekaiser's role
It doesn't make sense for him to be classified as Marksman as main role. The definition of Marksman is a ranged continous damage dealer which focuses on AAs.
Mordekaiser's main tools are his E, Q and R and while his Q is an AA modifier it can't really be considered a champion based around it. Plus he is ranged the same way Xerath is an AD Assassin.
Edit:
- Fighter/Marksman is ok
- Marksman/Fighter is not ok