Arcane Blaster Arm

This item requires you to have a missing arm!!

This item is a metal arm inscribed with ancient runes which glow when the arm is activated.  When you attune to this item it replaces your missing arm and connects with your arcane soul. Functioning like a normal arm and weighing roughly the same. 

You can use a spell slot to fire an arcane blast at creature within 120 feet, making a ranged spell attack. This blast deals damage equal to your one half PB x the spell's level d10 force damage

Any creature that is hit by this blast must succeed on a STR save equal to 15 plus the spell's level or be pushed back 5 feet.

Notes: You can attune to this item during a long rest, replacing any missing arm with this item