I'm still trying to work my mind around 2 things about that deck...
1) How does that even work? I mean, Uria is one thing, but...Jam Breeding Machine?
2) How did you even come up with that idea?
1.) The deck functions similar to 1-for-1 Gadgets. You win through mass removal cards and advantage generated by free monsters. At the end of a game it's not uncommon for me to have a full field of 2700 ATK or higher Tokens, a full backrow, and a full hand while my opponent is topdecking.
2.) I can't take full credit for it. I heard about the concept from someone else and loved it, so I went ahead and built my own version of the deck. My real-life build is similar to this one but it mains the Smashing Grounds/Dark Hole (sided for this tournament due to Non-Spellcasting Area) and uses Skill Drains and stuff to combat the meta, it's pretty good.