
A sword from the ancient times
The 3rd age longsword is a tier 85 melee weapon that can only be obtained from a Master casket while doing Clue scrolls. It is currently the best non degradable one handed melee weapon in the game beating the Kalphite whip. This weapon along with others was used by ancient warriors back in the 3rd age to fight one another during the God Wars.

A player wearing full gilded with a 3rd age longsword and 3rd age kite shield obtained during leagues season 1
Trivia[]
Although this weapon has been obtained a couple times during the Leagues season 1, It has yet to be obtained in the main game and is currently the most sought after reward from Master clue scrolls.