Paging Dr. Diablo, Come in Dr. Diablo

[Sasuke Uchiha]

You'd need to meet him in person first. Same as you'd need to do for anyone you wanted to contact with a Communicator or such. How you get there is either gonna require a Banishment or a Void Quest may be possible (though there won't be a return gate, so you'll need to go through the big guy to leave again). After all that... well, read some of Trixie's stuff. She regularly communes with the Big D.

Yea, no, that's cool. I don't feel like going through 20k words just to help the big D on top side, is this seriously the official answer here, cause that's kind of lame for someone to have to go through that much work just to start interacting with him. Are we saying Diablo doesn't have the kind of pull for cults to worship and due his bidding without first being banished? Seems weak.