CubeCobra

CubeCobra is an open-source web application designed for Magic: The Gathering players to build, manage, and playtest custom "cubes" (curated draft sets). It serves cube enthusiasts and game designers by providing powerful sorting, filtering, and analytics tools, along with a playtesting simulator. The project is interesting because it democratizes cube creation with a community-driven, feature-rich platform that rivals proprietary tools, all while being fully transparent and customizable.