Ragnaros was summoned to Azeroth 300 years ago, not 5. And Neptulon dwells in the Abbysal Maw - Deephome is dry land ruled by Therazane. Jormungand01 17:02, 6 November 2008 (UTC)

And another thing - Ragnaros actually wants to return to the Elemental Plane. Therefore he can't be banished there, since that would mean he was going against his will. Jormungand01 18:46, 7 November 2008 (UTC)