I checked the card rulings on the card and this was the first ruling:9/25/2006: "In a game of N players, the process ends when all N players in sequence (starting with you) choose not to put a card onto the battlefield. It doesn’t end the first time a player chooses not to put a card onto the battlefield. If a player chooses not to put a card onto the battlefield but the process continues, that player may put a card onto the battlefield the next time the process gets around to him or her."
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i think you misunderstood what hypergenesis does exactly. it gives each player in the game the option to put something out. As long as one person put something out as the spell went around, it repeats itself. So, to put it simply, as long as I put something out, the spell will continue to repeat. Think of the first trigger itself as going around once, rather than a person playing one card. So, in order for the spell to stop, it has to ask every person in the game to put something out and no one does.And to answer your heavy card draw question, in my first few turns i cast Lorescale Coatl to put a body out that continuously gets bigger. My main combo starter is Rishkar's Expertise, which bases the card draw on Lorescale Coatl and allows me to draw a large hand to make my combo work. That's mainly where i get it from , but there are a few other options, such as Bringer of the Blue Dawn. And since most of my deck is for the combo, i steal my opponents cards and use that for my offense, hence Mimeofacture and Stolen Goods. Those two also give the deck some unpredictability.