Thanks for all the working Triper. The users from our server really liked your calc. (almost an eAthena calculator).
Well, I see for Rainbow Scarf gives 5% matk, but it just give 1% matk.
About the Double Attack effect, I don't know too much about javascript and related codes. It seems work for Snake Head Hat, but, if it is troubled i think can also recycle sidewinder card effect.
I will be reporting any issue reported in our forum. Thanks a lot for your work Triper.