Pokemon diamond...? How do you deal with the blackout in Sunnyshore (or whatever) city? I've already dealt with Team Galactic in Veilstone, where do I go next?

< class="additional-details">Additional Details 3 hours ago I have released the three pokemon and battled Cyrus, yes. You need to catch Dialga which is in the Spear Pillar, Mt. Coronet.

Out of interest, have you released Uxie, Mesprit and Azelf yet? And have you battled Cyrus in Galactic HQ in Veilstone? If not, you will have to do this.