With this halberd, you have a small chance of doing 25% extra damage on hit. This chance varies with your Agility level and maxes out at 12% at 99 Agility. In the long run, this gives it a 3% damage boost over the chaotic maul and chaotic spear, which have identical stats otherwise. This weapon can be stored using a keepsake key, but only when newly made/repaired - used versions will need to be repaired first.