mtg born of the gods booster box / Aerie Worshippers and Forlorn Pseudamma will overwhem your opponent with token creatures if the game goes long enough. Transparent Booster Packs | Born

Consistently making little 2/2s that it buffs into 3/3s is a strong token generation ability

Both the ETB of the front face and the back face play into the strong theme of teaming up that Kylem is known for

Quick aside, while Magic has many influences, Richard has gone on record as saying the game that had the biggest influence on Magic was the game Cosmic Encounter which from a game design history standpoint is really the game that defined the genre of "rule-breaking" games that allowed players to subvert the game's rules

Brawl Not Legal Vintage Legal Timeless Not Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Accessories to Murder Artifact Contraption Whenever you crank this Contraption, target creature gets +X/+0 until end of turn, where X is the number of creatures you control

This deck tester has a lot going for it