Argonite longsword

The Argonite longsword is a tier 7 weapon from Daemonheim used in the Dungeoneering skill. It requires level 60 Attack to wield. It can be obtained by using 2 Argonite bars with a Smithing level of 64, (giving 132 Smithing experience) as a drop from Forgotten warriors who wear them, as a drop from Blink or the table at the start of a dungeon floor (requiring someone who has an attack level between 80-89).

Dropping monsters
Argonite longsword