After beating the elite four, you go to the survival area and make your way to the volcano. There will be this dude named Buck. I'm not really sure about the rest but you can go to marriland.com and go to Pokemon diamond and pearl walkthrough to find out.
the best Pokemon you can catch in Pokemon pearl is heatran
Heatran is a Fire / Steel type
Yes you can. You can get Heatran on both Daimond and Pearl. Heatran is located at Stark Mountain. Heatran will be Lv. 70. Good Luck catching him!
Heatran
No. It was introduced in Pokemon Diamond and Pearl
The legendaries in Pokemon pearl are Palkia, Regigigas, Giratina, Cresselia and Heatran.
battle with her (heatran's a girl) or trade it or use it in a contest.
You can't. You need to get Heatran from Pokemon Diamond, Pearl and Platinum and then trade to heartgold and soulsilver.
you find the legendary Pokemon heatran
stark mountain
no
Stark Mountain