This deck is absurdly fun, because it's a different deck every game! You copy and steal your opponent's cards, then you beat them with their own stuff!
Decklist: https://snap.fan/decks/261220/
Power Estimate: This deck was built for fun, but performed surprisingly well with a 75% win rate through my first batch of games. It needs way more data to confirm if it's anything more than a meme, but it's at least capable enough for a fun deck.