You will be send to kill the following enemies:
1. Khelone Khelydorea in the Pools of Orcus in Brimstone Sands.
Loot the Massive Claw.
2. Colossus of Qebui in Brimstone Sands.
Loot the Colossus Core.
3. Sividus in the Hornhold Labyrinth in Elysian Wilds.
Move clockwise through the Labyrinth.
Loot the Drake Horn.
Flagging for pvp and restarting game worked for me
i managed to get it to drop after flagging for pvp and restarting the game try that
Broken doesn't drop trophy -.-
You need to be very close to where it spawns in order to get credit. Fight right in the safe water area next to the pool. The same goes for all of the mobs. It is not a big radius