Elemental Weapon Enchanter

You become proficient in using an enchanters kit and have one on you (dndbeyond/magic-items/1663133-enchanter-kit) (Can't have links to share unfortunately). You can use the stones within to enchant your current weapon. 

As a Bonus Action you can enchant your current weapon with one of the following as long as you have the component - 

Acid - (Stone of Disintegration)  Lasts 2 hits or 1 minute (when not used) does an extra 1d6 
Cold - (Stone of Freezing)  Lasts 2 hits or 1 minute (when not used) does an extra 1d6
Fire -  (Stone of Hellfire) Lasts 2 hits or 1 minute (when not used) does an extra 1d6
Force - (Stone of Force)  Lasts 1 hits or 1 minute (when not used) does an extra 1d6 and pushes the target 15ft away from you
Lightning - (Stone of Lightning)  Lasts 2 hits or 1 minute (when not used) does an extra 1d6
Necrotic - (Stone of Death)  Lasts 2 hits or 1 minute (when not used) does an extra 1d6
Psychic - (Stone of the Mind)  Lasts 2 hits or 1 minute (when not used) does an extra 1d6
Radiant - (Holy Stone)  Lasts 2 hits or 1 minute (when not used) does an extra die(Undead. Fiends, Devils and Demons)
Thunder - (Stone of Thunder) - Lasts 2 hits or 1 minute (when not used) does an 1d6 (The sound of the strikes echo for 100ft)

When you reach level 5 the damage increases to 1d8 and at Level 10 it increases to 1d10.