What do you do after you caught Heatran?

Answer 1

Not much. You just have to get all the other Pokemon and improve your secret base.

...Hey this is Samuel someone a little more helpful

the point of Pokemon is to become the best of the best and you do that by having all the best Pokemon. After I caught heatran it was a Pokemon event and I caught Darkrai and I still can't wait to catch Shaymin and maybe some wonederful day Arceus.But not all good Pokemon are legendaries I know a good one you should try to catch if your waiting. This is how to catch it:

Spiritomb: Near the town with the flowers is a hollowed tower its actually a small crumpled rock in my perspective and it's just below what looks like a big tower (the one where you have toi use defog in the top room so don't be fooled. If you headed from the Flower town to the rock then keep eadin that direction till you go through one of those wierd buildings that are kinda pointless once through that building there will be a house head down and near the trees there will be a karate guyhe give u somethin like a hollowed stone go back to the crumpled rockinteract with it and u will have it fixed. Next step you have to go underground and talk to 36-40 people you come up and back underground every time to talk if you want to talk top the same person. (I never acquired the digging tools so I get stuck here cause i Can't find the drill) but i think you go back to the flower topwn or salocean town or the crumpled rock and you fight Spiritomb don't kill it I think there is only one. And it's a special Pokemon cause its the only one that's weak on nothin. eg. Fire attack on spiritomb would not be super effective as would grass water ice steel rock fight physick balh blah blah blah blahh., I hoped I helped