Elden Ring | Gargoyle's Halberd drop from Valiant Gargoyle near West Capital Rampart site of grace

Location: Leyndell, Royal Capital

The enemy it drops off of is a Valiant Gargoyle. They do not respawn once defeated.

Gargoyle's Halberd
"Gargoyle's Halberd is a Halberd in Elden Ring. The Gargoyle's Halberd scales primarily with Strength and Dexterity."
https://eldenring.wiki.fextralife.com/Gargoyle's+Halberd

Valiant Gargoyle
https://eldenring.wiki.fextralife.com/Valiant+Gargoyle