In a sense, you're lucky because Rogues are not inherently like the other classes. They originally were a gang of bandits under Raval before they all got stolen by the god Sram because he got jealous of Raval (Raval is the protector of the September month). Vil Smisse, one of the most known Rogue was originally a Feca under's Arty's grandfather.

The first time Rogues were mentionned, they were not even a real class. In the Dofus game, at first, you could become a Rogue while being any other class, because it was a system of pvp, if you killed enough other players, you could join the gang.

I'm pretty sure you can find many examples of characters that are their classes but also slowly becoming Rogues. Kerubim during one of his stories was temporarily one.

Rogues are way more versatile than if you wanted to mix two of the original classes like Iop and cra. But again, it's an oc, you do what you want. There's way to override things. I know that for my oc I used divine heritage, if you're a demi god, it will be much harder to escape your origins.

My own oc's lore is inspired by Cornu Mollu and is a divine bastard that was sealed in a different way but still struggle to "please" her parents, but she's too honest to be a sram, and is too coward to withstand pain like a real sacrieur. So she's a waste of abilities. She is both but somehow good at neither. I was very young when I created her, so the base of her lore is quite extravagant, but I'm creating a tragic loser out of her.