The Sir Owen’s Longsword is a one handed melee weapon exclusive to accounts playing on Extreme Mode. It has the fastest Attack speed of any weapon in all of SoulSplit, and is received instantaneously after selecting the "extreme" mode upon account creation. If you lose your Sir Owen's Longsword, you can purchase it from Legends Guard in Lumbridge’s Graveyard for forty million coins.
Sir Owen's Longsword is the most popular training weapon among accounts playing on "extreme" mode, and is considered by many players to be the best Melee training weapon in SoulSplit. It is also a very popular weapon to use against boss monsters, as its attack speed allows it to produce more damage per second than any other weapon in SoulSplit. Some players wield it even when not training to distinguish themselves as accounts that are playing on Extreme Mode.