Best to never pull off a full board in one turn this is a different type of duel you need to really think about each play take your time even if it drags out a few turns how I am ranking up also using Hazy Beat down With more cards that can bounce or out speed by removing spell /traps so try adding 2 or 3 copies of Hey trunade and 2 or 3 copies of Cosmic Cyclone has been key so far to board wipe
And set up your board with a clear field also playing around certain skills as well if they have a low hand it is all about reading your match up and not putting yourself in a disadvantage if you donot need to