there was one moment where you could have targeted their creature with an instant on their upkeep since their lands were already untapped. i struggle to remember to do this is why i noticed. not to pick on you. i think it was against the boros deck. the one where they could give their creatures hexproof.
It is a strong deck. I like it cos you don't hide your rank like some do. If I don't see rank I just don't watch. Cos almost any deck could be presented as amazing with 20 games and then they show just the wins and name it 7:0 amazing :D Those who play MTG arena know this was not 9-0 :) started with tier 1 and end it in tier 3.