Tinker Time (Green-Blue-Red deck)100-card ready-to-play March of the Machine Commander Deck with 2 Traditional Foil Legendary cards and 98 nonfoil cards 10 Planechase cards and 1 planar die to trigger unique abilities and jump across the Multiverse 2-card Collector Booster Sample Packcontains 2 special treatment cards from the March of the Machine main set, including 1 Rare or Mythic Rare and at least 1 Traditional Foil card Deck introduces 10 never-before-seen MTG cards to Commander Accessories1 Foil-Etched Display Commander, 10 double-sided tokens, Life Tracker, and deck box Engineer Their Destructionally with a deviously inventive artificer, collecting artifact tokens to strengthen his artifact creature creations into a terrifyingly advanced fighting force

This is a bit of an edge case since they aren't proper cards and are not typically available in constructed play, but I think it's fun when things get weird so I OKed them (with the exception of Power Play, because it undermined the structure of the tournament)
Combat Celebrant has a whopping four power, and its exert ability lets you get an extra attack, which can be all sorts of good for Ryu
Assuming you have a sufficiently full graveyard
Otherwise, youre forced to make token copies of itself forever, ending the game in a draw