This deck is absolutely horrible. Just tried running it for a little while, got to gold 1 after about a 50% win rate. And now I'm just getting stomped by every single other meta deck there is. Don't use this, it isn't 9.0 for pvp, should be probably somewhere around 5-6 because it's entirely rng based, and for some reason the rng is horrible. And even then, you get countered by so many other simple things. This deck needs to be updated to be not so high on the list. It's horrible for pvp.
The monsters in this deck are fine (Could add in 1 sphere kuribo) but it's good for the most part. If you want to make this deck competitive you are going to have to change the spells and traps. Not even sure why Overwhelm is in this deck it's a garbage card.
This deck requires quite a lot of skill to run correctly and make the necessary adaptations to the deck list above. I have made platinum in 2 days (from gold 1) with approx 75% win rate using it