The strength of your champions is affected by several things. Their leadership determines how many troops they can bring to battle. This can be increased by spending a Smart Chip or when the champion levels up. Skills will activate automatically during battle. Your champion has a specific skill point, which is spent to learn a new skill. Get skill books in order to learn new skills. Talents are passive abilities that will affect the units under that champion's control. They will increase their attack damage, accuracy, and other factors.