Blood Bowl Message Board  

..you will need to request one here: cheatscapes.com/requests.asp

PWizard commented this on the main Cheathappens trainer request board: "No, this game and series was retired. There will not be any more trainers made for it regardless of how many requests are made for it.

You can make your request at CheatScapes.com and perhaps one of the authors there will make a trainer for it."

Just add your vote to Blood Bowl Legendary at cheatscapes if that is what you are looking for and maybe someone there will make one if there are enough requests.