Weapon Blessings

You imbue your weapon with great power against a single specific foe, whose name you inscribe upon the weapon.

When you face that foe in battle, you gain a +10 bonus to hit on your first attack and do +10 damage on that first attack if it is successful. In addition, if you roll a natural 1, you may reroll: you must take the second roll, however.

After that first blow, the magic fades somewhat. For five rounds afterwards, you have a +1 to hit and a +1 to damage against that creature. If you use this weapon against another creature before you strike your named foe, the spell ends and the weapon becomes completely normal.