I played MTG arena for a few months before WOS came out. Izzet Drakes was my favorite deck and it worked out pretty well, i won more games than i lost. I took a break from Arena and now i wanna go back into it but my old deck loses to just about everything now. I don't know enough about this game to optimize it myself and every deck i find online on recommended sites suck as mtggoldfish is Bo3. How do i transform a Bo3 deck into a Bo1?

My old deck was made by myself on the skeleton of Izzet Drakes but now with all these new cards i'm lost at what to do. Planewalkers give me a headache as my core removal cards like Lava Coil now are worthless.