This means big boy assembly coding right from the start - hardcoding a cheat can be learned reasonably quickly, as can basic stats manipulation, but this involves finding, understanding and ultimately changing program flow. If it was tweaking stats, basic stats handling, text, animations or colours of graphics then that is one thing but you are striking right at the heart of the game's logic. This kind of bug fixing might also be jumping in somewhat at the deep end.
This is also why you tend not to see many hacks for things.
As ever I have to preface this sort of thing with a note that collectible card game AI is one of the harder problems in computing ( ) and as such messing with things too much will break it.
