Where to play the Edison Format Online
The best yugioh simulator to play the Edison format online is Dueling Nexus.
All cards are absolutely free and unlocked as soon as you register. Dueling Nexus has all relevant pre-errata cards needed for the Edison format, as well as the correct banlist and cardpool.
Dueling Nexus offers both a fully automatic, as well as a manual game mode. So weather you are training for a local tournament, or you want to get in as many quick games as possible, Dueling Nexus has you covered.
Edison Ranked Mode
Dueling Nexus offers the Edison ranked mode.