Effective Against
DjinnA silver knife coated in lamb's blood is the specific weapon required to kill a djinn. Neither silver alone nor lamb's blood alone is sufficient — the combination is essential. This specificity makes djinn encounters particularly dangerous for unprepared hunters who might assume standard silver weapons would work.
Preparation
Fresh lamb's blood is required. The silver knife is dipped or coated immediately before use. Whether the blood needs to be fresh from a living lamb or can be sourced from a butcher is not specified, but freshness appears to be important. The knife must make direct contact with the djinn's flesh — the blood is not a ranged weapon.
Symbolism
The lamb's blood requirement carries heavy biblical symbolism. The blood of the lamb is a recurring motif in Judeo-Christian tradition — from the Passover lamb in Exodus (whose blood on doorframes protected Israelite firstborn from the Angel of Death) to the Lamb of God in Christian theology. Combined with silver's traditional purity associations, the weapon carries a symbolic weight of sacrifice and protection.