So!

[@Lunarlord34] The Sword Saint title is associated (usually) with iaijutsu, which in [i]mythical[/i] lore allows them to draw, dash, and swing all in one motion. It's the stereotypical samurai face-off move where one guy gets a cut on his cheek while the other falls in half and sprays blood like he's in a Kurosawa film. Their gimmick may be very strong opening moves, specializing in sword category, not a ton of follow up routine.

Templar is a high class that [i]probably[/i] branches from the Cleric class, considering Roberdyck has levels in that class as well as Cleric and High Cleric. It may or may not have more to do with either dealing with undead, or a martial-focused branch for the cleric. Suffice to say, it's probably got divine casting power, and it can just as easily branch from Paladin I bet. 

Avenger [i]definitely[/i] sounds like a martial-focused paladin branch. They probably come with a specific and gimmicky kit but... I don't want to get carried away and make the whole class right here.

That's about what I've got for now.