u/Beerus007

Getting back into yugioh first time since 2013. Been playing master duel (srry if wrong sub). I dueled this guy with a deck of mostly Utopia cards. He went first and spammed out a field of Utopia XYZs with one of them being a 13000 atk unit. As soon as my turn started he activated an effect to sacrifice the 13000 xyz and gain 13000 lp, then activated a trap to inflict that 13000 gained to my lp and a win the duel. Never stood a chance.

I’m wondering what insane deck build this was and I’m also wondering how I could counter it in the future.