The only thing that really matters is luck but the only thing is that it needs to be at A. Raven's Cove or B. Isla Tormenta.
Find: Behemoth Blade
Server: Vachira
Time: 11:00 AM-12:00 PM
Zone: Shipwreck Hall, Tormenta
Weapon used when found: Death Staff
Rabid Rabbit
Famed Animal