I guess anyone will prefer to know the following things :
1. Who will register entropay card
2. How much commission you can provide for this services and it will be based on per card or based on amounts ?
3. Approximately how long this deal will last
4. When I last used entropay, they accept only visa/master cards to load funds to their virtual cards. If OP comes with available payment methods for loading entropay, it will be helpful for many people here.
I wonder, why OP needs entropay cards as there are lot of crypto based virtual/physical card providers are now a days available given that he is ready with BTC payments.