[Deceptor]

You're right about the (CPU) bug, I'll patch it in an update later today, although it's just a text error for now so no rush.

As for the chances within Decks, there are 2 types. First of all decks themselves have level chances, ranging from 0-1000%. The code will roll through each level in order (1 -> 10) and checking a random number between 1-1000 fits in the chance, if so a level 1 card is added, if not roll to the next level. Repeat until the process is done

Secondly in regards to decks, cards themselves have a 0-100% "rare" value, so when a card is added from a level that too is is picked based on rarity values, so you can make specific cards rare within a level

In regards to the CPU Artificial Intelligence, by rule of thumb both aggresive/defensive attitudes should sum to 100, eg: 50/50 or 20/80, etc... The attitudes themselves are a guideline to how the CPU plays (agressively or defensively).

After that you just have accuracy to consider, 10% ands lower for either accuracy makes the CPU pretty dumb, 50% gives is a good chance and both accuracys at 100% and the CPU will make the best moves it can find all the time including some sub attitudes like aggresive-defensive and defensive-aggresive playing.

That's it in short, I am writing up documentation however to explain all this and the rest in detail