Tempered Essence is a 
Vladof SMG.
Its special effect is Aura - has a chance to fire a Fist that deals Melee and Grenade Damage.
Use your favourite features in-game with our Desktop AppBorderlands 4 Guide
How to Unlock The Legendary Tempered Essence SMG
Weapons
Legendary Loot
Overview
How To Unlock
Unlock Location:
- Activate the Warped & Weird Vault Card.
- Earn Points by completing challenges and leveling up.
- Once you have enough points you will be able to purchase the Tempered Essence from the Vault Card.