In the game, while in any town or having adventure or in battle, hold Shift + D, and a box will pop up and say "What do you want ?"
Key in the following tips:
leetbuffz - blessing, shield, a long lasting shield, scheme and others
iwanttobestronger - will gives xp to each character, unless as they level.
owmybrains -- will able to heal mind effects, such as charm
iampoor - will have 500gold