First level character attack moves will do damage according to your level + 1/2 your strength.
Second level character attack moves will do damage according to your level + your strength.
Ultimate Moves will do damage based on your level + 1.5 times your strength.
First level defense moves will block damage based on level + 1/4 speed.
Second Level defense moves will block damage based on level + 1/2 speed.
Ultimate level character defense moves will block damage based on level + speed.
Dragonfist - 15 damage plus strength and power level
Character moves are acquired by gaining levels. Your first move is acquired at level 1, your second at level 12, and your ultimate move is gained at level 25. There are some rumors that stronger moves exist, but you'll just have to wait and see, if you become that powerful.