My new deck?

You should mix your deck with other types a little more. Try experimenting with big ones likes Blue Eyes White Dragon. I see that you are using a Magician Deck. Personally, I use a Dragon Deck. I include powerful ones like Blue Eyes, Buster Drag etc. If you really want magicians, then add a few more defensive cards in. Stock up on Sword of Revealing Light. Your magicians definitely need the backup. You cant have just 1 monster reborn if you want to win. Add more of that card. Hope you have fun duelling.