I've been doing missions on the Entralink and I'm getting bored. Is there anything else I can do there?
(EDIT) Yes you can!
You have the Entree for make missions, also you can use Pass Powers. Since Dream World is closed you can't do much thing.
When you reach Level 30 in Entree you win +1 Color in the Trainer Card. Source: http://bulbapedia.bulbagarden.net/wiki/Entralink