Forum:Dark Sycro deck help! Dark Tuner

Help help help! i don't know whats the difference between tuner and dark tuner when applying the syncroning the materials. syncro monster addition? dark synro? subtraction ? and can u make a deck list becuz i have a dark syncro monster from japan heheheheheh i got it in the tournament >< sounds cooooool right? this is my card One-Hundred Eye Dragon