Baldur's Gate Wiki

CORNUGON.ITM is an undroppable melee weapon used by various Cornugon creatures.

It is considered a magical and +3 enchanted item and deals 1d6 Slashing damage damage (adjusted by Strength bonus), with a range of one foot, and speed factor of 0.

A successful hit on a target requires a Saving throw vs Breath to negate a 10 second duration Stun effect. Magic resistance can also block it.

The hit also exposes the target creature to a systemic Poison effect, inflicting 1 Poison damage per second for 10 seconds. There is no saving throw. Only resistance to the status effect or poison damage will block this.