Dagger of Le'Jin

This dagger is formed from the spiralled horn of an Almiraj, shifting colours flow across the length of the horn constantly in flux up until the horn strikes a target. A sinister black light fickers amidst the other colours, occasionally surging outwards into the wielder when a target is struck.
You have a +1 bonus to attack and damage rolls made with this magic weapon.
1d4 Fire, Cold, Acid, Lightning or 1d8 Necrotic Damage to you. Roll 1d10 to determine which: 1-2 Necrotic, 3-4 Fire, 5-6 Cold, 7-8 Acid, 9-10 Lightning.
Proficiency with a dagger allows you to add your proficiency bonus to the attack roll for any attack you make with it.