Ive seen people try to make Risk Factor work in EDH a few times before, and in reality it almost never draws you any cards because 4 life can be too insignificant
At the beginning of combat on your turn, you may turn your treasure tokens into 3/3 (!) Construct Assassins
There's even some accusing this of being guerilla marketing, though of course we have not a shred of evidence to suggest that
When Noble Benefactor dies, everyone, you included, tutors for any card
Theres plenty of food payoffs like Experimental Confectioner that also get to brewing in their art that you can use to supplement these decks, and thematically appropriate removal like Bake into a Pie and Feed the Cauldron
Unless the opponent has whiffed hard, they should have something in hand to stop it, as theyll have had the chance to prep plenty of lands in the time it takes to get the resources to play Jumbo Cactuar