YUGIOH- Deck list Obelisk the Tormentor?

obelisk is not banned nor limited but the reason why obelisk is not used in tournaments is because nowadays, the game of yugioh has evolved to a much quicker game. the usable obelisk and any card can be bought via ideal808.com cuz u cant get obelisk in a booster. people use archtypes such as six samurais, gravekeepers, machina gadgets, blackwings etc because these decks are considered top tier. many deck archtypes have so many combos that most can end the duel in a single turn and basically your obelisk would never hit the field by then. in addition, god cards don't have many support cards compared to the many archtypes there are in the game so if you focus in this type of deck you would be in a very big disadvantage. for more info, go to tcgplayer.com, you can take a look at deck builds there and get an idea of what type of deck would suit your style, that would be my recommendation to you...