Post: #3

Usually all percentage formulas are calculated using "muldiv" order (multiply -> divide) and not divide -> multiply. Both formulas should work, as 250/50*10=50 is the same of 250*10/50=50, but using proper order will return more precise results

Also note that @Damage on weapon is called when the weapon got damaged (receive damage) and not when it cause damage. It was also called at the hit moment because when you hit someone with the weapon, this will also make the weapon get damaged (lose durability). But to deal with ~hit~ damages you must use char trigger @Hit and not the item trigger @Damage

And after use combat formula calculate the damage, sphere will also calculate the resist. So you're using a custom damage formula that already apply the resist, but later sphere will also apply the internal resist formula again. To avoid this 2nd resist formula you must set the flag dam_fixed on @Hit, this will make sphere skip next formulas like bonus damage, resist calculation, etc

So to get the best result, you should probably use something like this