Hello everyone. RE. MY mistake didn't saw , symbol. I have made a skill book , but one skill ruins everything because he has armor penetration and i can't rewrite it, maybe you will be able to help me. &{template:default} {{Use on=**@{target|Target1|character_name}** }} ?{What use? | skillname, {{name=ilovetaco}} {{DMG=[[floor(((1d@{Weapoon1})+(1d@{STR}))@{target|Target1|DEF1}@{target|Target1|DEF2}*0.5)-{0d0,(1d(@{target|Target1|DEF4})-(1d(@{ARMPen}*1)))}kh1]] HP}} {{PS=**I love cakes** | ...... } }} Problem part here is {0d0,(1d(@{target|Target1|DEF4})-(1d(@{ARMPen}*1)))}kh1]] I think it is because { } symbols, i have tried to replace them with } and &123; symbols, but it doesn't work, maybe someone can help me. Main target of this part is to penetrate armor and if armor penetration>armor not to give negative number, but to give 0. IF you have any questions ask.