Adder of Strife

{r/g}This appears to be a golden snake. When activated as a bonus action, it uncoils and slithers into your hand in the form of a golden spear or dagger. The transformation lasts until you deactivate it as a bonus action. Your attacks with this weapon count as magical.
On a critical hit with this weapon, it unleashes a wave of screams which deals 4d8 necrotic damage (which isn't doubled with a critical hit) to all creatures within 15 feet of the target. This extra damage does not affect creatures that ar