This is a Going second beatdown deck. As the name implies, the main strategy for this deck is to banish as many cards as possible, then Normal summon Gren Maju Da Eiza and attack for game. You achieve this with cards like Pot of Desires/Extravagance, Eater of Millions, and Fairy Tail- Snow.
There are also several monsters that benefit from having a ton of banished cards, such as Eater of Millions, Necroface, and Helios- The primordial sun.
If you need some extra damage, there is also a Banquet/D.D. Dynamite engine in the deck, as well as Golden Castle of Stromberg.
If your opponent manages to stop the Gren Maju, don't worry; the deck has a backup plan. You have a wide variety of level 8's at your disposal; Hexe Trude, Gizmek Orochi, and Gadarla are all level 8's. If necessary, you can summon Number 97: Draglubion to Special summon Numeron Dragon, which will have a minimum of 9,000 attack. After that, you can summon Zeus for a free board wipe.
If you are going first, your best bet is to use Golden Castle of Stromberg and Macro Cosmos, two floodgates that work perfectly in this deck.
Basically, It's 3 OTK decks in one.