Otk's as far as OTK's go you'll want a fast deck with...Not many spells/Traps. You'll also want to go second a lot and a way to avoid things like torriential tribute and mirror force. Fabled/Blackwings are good. Blackwings for the fast synchro and fabled because of their effect and abilites to pick off traps before hitting the field not to mention their ability to summon each other out of the blue and attack twice. You'll want to make it when you have a lot of time however because making the deck will take precision and patience.