Edison Arena

Edison Arena brings the format back with the feel of a modern digital card game. Duels play out on a lit 3D table with drag-to-play cards, summon effects and clear turn and phase call-outs, so even newer players always know whose turn it is and what they can do.

Every match opens with a race for the first turn, then deals both opening hands before play begins. Matches are best of 3 with sideboarding between games, like real tournament play.

The deck builder covers the full Edison card pool of about 3,700 cards, with the March 2010 Forbidden & Limited list enforced, and it imports and exports standard .ydk files. Sign in with Discord to keep your decks across devices, or jump in as a guest. A practice bot plays real games for learning and testing decks.

Every duel runs on an authoritative game server. The official open-source rules engine, EDOPro's ocgcore compiled to WebAssembly, checks every move, and each player only ever receives what they're allowed to see, so hidden cards can't leak.

Staging and production run as separate environments, so changes reach testers on a staging build before they go live. End-to-end tests play full duels over WebSockets, and Playwright covers the interface.