Do you have to the super rod catch dragonair in Pokemon diamond?

You don't need the Super Rod to catch Dragonair in Pokémon Diamond. You can encounter Dragonair in the following ways:

* Route 228: Dragonair can be found in the water here, though it is very rare.

* Lake Acuity: After defeating the Elite Four and becoming the champion, Dragonair can spawn here in the water.

The Super Rod is mainly used for catching rare Pokémon that can only be found in deeper water. While it's useful for catching certain Pokémon, it isn't specifically needed for encountering Dragonair.