Fang of Fenrir

If the player slides a natural 20 while attacking with this weapon, the number of Melee attacks the monster it hit makes on its next turn is reduced by 1. E.g., 3 Melee attacks become 2, 2 Melee attacks become 1, and 1 Melee attack becomes no Melee attacks.

The monster’s ability to make Ranged attacks and/or cast spells is unaffected by Fang of Fenrir.

This penalty does not stack with itself, even if more than one player is using a copy of this weapon. E.g., if the entire party is attacking with Fangs of Fenrir and they all slide natural 20s, the monster only loses 1 Melee attack the next round.

As far as game mechanics are concerned, Fang of Fenrir is a dagger. It can be used in Melee or thrown, but it does not have the Returning property. Any effect that affects daggers affects Fang of Fenrir as well.