Nice model and great idea !
It would be nice to create a full new game based on the Witcher universe
You could add a ton of special rules :
- Signs (magical powers?)
- Combat styles (for instance, Not Geralt cannot be trapped, because of the "group" fighting style)
- Monster Knowledge : if Not Geralt has learnt some tips to fight against that kind of monster, he may gain some more bonus...
- Cirilla Fiona Elen Riannon : when Ciri is on the board, Not Geralt must move as close to her as he can (same kind of rules than "Gollum" one)
- Sorceress instinct : when fighting against a female wizard, Not Geralt suffers a malus (cannot strike if he wins, -1 to the duel roll, ...)
There are lots of ideas to use and create a versatile universe :p
[ sorry for my poor English ]