Anvil of the Master Smith

This is a medium-sized anvil, etched with dwarven runes. It counts as Smithing tools for repairing and crafting items, and gives the user Expertise with Smithing tools. 

Once per day, the user may spend 1 hour working on a weapon, ammunition, or armor to give it special bonuses. Choose a weapon, ammunition, or armor:

• Weapon. The smith may choose one melee weapon to work on. A weapon that has been worked on with these tools is considered magical, and deals an additional 1d4 points of damage. The smith may choose to alter the damage type of this weapon to any damage type they choose for the duration of this ability.
• Ammunition. The smith may choose up to 10 crossbow bolts or 20 arrows that can be worked on. These are considered magical, and deal an additional 1d4 points of damage. The smith may choose to alter the damage type of this weapon to any damage type they choose for the duration of this ability.
• Armor. The smith may choose a shield or any armor other than Leather, Padded, or Hide. A shield or armor that has been worked on gains +1 to AC, and the wearer gains resistance to non-magical damage, and any type of damage the smith chooses for the duration of this ability.

This bonuses last for 8 hours, after which the item reverts to its normal state.

This ability replenishes after a long rest.