Arcane Arm

This arm is a magic weapon that replaces your arm, becoming inseparable from you as long as you're attuned to it. To attune to this item, you must hold it against your stump for the entire attunement period. This magic item has a number of positive and properties, listed below:

Positive:
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 • This arm deals 1d6 Bludgeoning damage grants a +1 bonus to Attack and Damage Rolls made with it. You may use your Spellcasting Ability modifier in place of Strength when making attack and damage rolls with this weapon. 

 • When you make an Attack Roll with this weapon and roll a 20, you may regain 1 first level spell slot. 

 • As an action, you can imbue this arm with one spell you can cast, then make a single weapon attack with it. If the attack hits, apply weapon damage as normal and the spell also hits. Hir or miss the spell slot is consumed. A spell requiring a saving throw requires the same save, which is made at Disadvantage if your attack was made at Advantage
    ○ The spell used for this feature must require 1 Action to cast and be 1st level or higher. Alternativly-if you are concentrating on a spell that allows you to make repeated actions (Such as Vampiric Touch) you may use that action as well.

Negative:
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 • Whenever you make a saving throw to avoid damage, or make an attack roll with this weapon and roll a natural 1, roll an additional d20. On a roll of 5 or lower, your arm becomes disabled. When disabled in this way, your arm can not function as a weapon, and can not bear weight greater than 5 lbs.

 • Your arm can be repaired with 1 hour of work conducted by a creature with proficiency in Tinkerer's Tools or Eningeering, which can be taken in conjunction with a short rest. 

Notes: Damage, Utility, Combat