Damage calculation formula:
Damage value = ((attacker level *0.4+2)* skill strength * attacker attack value/defender defense value /50+2)* correction index * attribute correction * random (2 17-255)/255.
Attribute correction coefficient: whether it is a local attribute trick or not, the local attribute is 1.5, and both non-local attribute tricks and ordinary physical attacks are 1.
Random (2 17-255)/255
Correction index: namely gram index: 0.25; 0.5; 0.75; 1; 1.25; 1.5; 2