Show HN: I taught LLMs to play Magic: The Gathering against each other https://ift.tt/mtwj6Db

Show HN: I taught LLMs to play Magic: The Gathering against each other I've been teaching LLMs to play Magic: The Gathering recently, via MCP tools hooked up to the open-source XMage codebase. It's still pretty buggy and I think there's significant room for existing models to get better at it via tooling improvements, but it pretty much works today. The ratings for expensive frontier models are artificially low right now because I've been focusing on cheaper models until I work out the bugs, so they don't have a lot of games in the system. https://mage-bench.com/ February 17, 2026 at 09:52PM