Rare Candy is a New York- and Dallas-based online marketplace built for trading card game collectors. It brings the social energy of the neighborhood hobby shop online, letting people buy, sell, auction, and track sealed booster boxes, vintage packs, and graded cards across Pokemon, Magic: The Gathering, Yu-Gi-Oh!, One Piece, Gundam, and Lorcana. Co-founded by product veteran Chris Knape and YouTuber Lee Steinfeld (Leonhart), the platform pairs verified inventory and Thursday live auctions with an AI-powered card scanner that identifies cards in English and Japanese and surfaces real-time pricing.

Zvi Mowshowitz is a writer, AI safety analyst, and former professional Magic: The Gathering player. He is best known for his Substack newsletter 'Don't Worry About the Vase,' which publishes detailed weekly AI updates and rationalist commentary to over 33,000 subscribers. Inducted into the Magic: The Gathering Pro Tour Hall of Fame in 2007, Zvi is also the founder of nonprofit policy think tank Balsa Research and co-founded MetaMed, a personalized medical research firm backed by Peter Thiel. He is a prominent voice in the rationalist and AI safety communities, known for his p(doom) estimates of 60-70% and his systematic, data-driven approach to understanding AI risk.