Ivandis flail

The Ivandis flail is created by the player during the Legacy of Seergaze quest using a Silvthril chain, Silver sickle(b), the Rod of Ivandis and an emerald.

It is the only method available to kill the Vyrewatch, as it contains Silvthril enchanted by mortal means (enchanted sapphire) and divine means (dipped in the well connected to the River Salve), which harms vampyres. But the Rod of Ivandis itself won't do on the Vyrewatch, because they have a minimal mind-reading ability which lets them predict and avoid damage. The Ivandis flail counteracts this by being incredibly unpredictable, because it is a hard weapon to master (even if the vyrewatch know how you intend to hit them, you won't hit them the way you intended, rendering their mind-reading useless) and the shape of the silver sickle for the head increases the unpredictability of the weapon.

It can be used as a Silver sickle(b), and used in place of a Rod of Ivandis, with 30 starting charges (because of the enchanted emerald in the sickle head). This lets a player kill Ghasts, Vampyre juvinates, and Vyrewatch with a single weapon. It can also autocast all of the basic elemental combat spells.

On the official Runescape forums, a Jagex Moderator pointed out that continuous use of the flail on the Vyrewatch will "improve" your ability every 50 Vyrewatch kills and cremations stating that they feel like they have improved with flails. This did not however change the stats when equipped. Flail gains a full power when 500 vyre corpses are cremated. After cremating 50 Vyrewatch corpses the player will see a message that reads, "You feel more experienced with the Ivandis Flail." You can check how many corpses you have cremated by checking the lectern to the south of the columbarium.

Each bonus gains you an invisible boost of +5 in attack, strength, and defence when using the flail against Vyrewatch. However, the maximum damage that can be done to Vyrewatch is 25.

Note: Despite the fact that the flail can hit the flying Vyrewatch, it cannot hit Aviansie which are always in flight.

When all charges have been used, the Flail turns into "Flail dust". Flail dust is one-handed and provides the player with no bonuses.