Better is used to discribe somthing that is higher in value or worth than another thing. Somtimes it's used to discribe people. It can be one of these five:
1 : greater than half
2 : improved in health or mental attitude
3 : more attractive, favorable, or commendable
4 : more advantageous or effective
5 : improved in accuracy or performance
Person 2: I am a better king than you'll ever be!