You can start the quest by talking to the three adventurers near a campfire in the Lumbridge Swamp. This is a relatively easy quest, often completed as early as possible for the sole purpose of unlocking the dragon dagger. In order to equip the dragon dagger, you must have 60 Attack and have completed the quest ‘Lost City’. Keep in mind that some monsters and enemies are immune to poison, however. Depending on the strength of the weapon poison, you can deal extra damage over time to enemies using the dagger. Your damage output with the dragon dagger can also be increased by using a vial of weapon poison on a clean dagger. The special attack is called Puncture, and deals two hits at the same time, both with a 15% boost to accuracy and damage. The dragon dagger also has a special attack that is a huge contributor to its popularity.

It is also one of the strongest daggers in the game, second only to the abyssal dagger. In fact, any player you ask will cite the dragon dagger and its poisoned version as some of the most iconic weapons in the game.

One of the best dragon weapons in OSRS is the dragon dagger.

Dragon armor old school runescape