Different ways for duelingnetwork com
Login :
1. Here are some possible ways which include. Login to your account via a Web browser or via using duelingnetwork com
mobile application.
2. After visiting the official duelingnetwork com
Login page, now you need to submit your official login credentials.
3. Once the details are entered, press the Next button to access the account.
Dueling Network - Wikipedia
Dueling Network updated its database with all available in Yu-Gi-Oh! as soon as they reached their official release date. All available cards were free-to-play.The game followed all official TCG rules. It was possible to play in Advanced (Rated), Advanced (Unrated), Traditional (Unrated), and Unlimited (Unrated).
https://en.wikipedia.org/wiki/Dueling_Network