Guitar granted by the God of Thunder and Rock N’ Roll, Gene Simmons.

The original holder of this instrument was the legendary bard Yugen it allows the holder to cast call lightning, chain lightning,Thunderwave, and misty step at will once per long rest using the charisma stat of the user 

If attuned to the user also gains an additional 10 movement speed as well as an additional reaction

the user must play a nasty riff in order to attune to this item