Berserk

You cast a minor alchemical spell on a vial of Fire Giant's blood, and it becomes charged with fiery energy. When a target drinks this blood, they go into a berserker rage. The target gains advantage on STR checks and saving throws (not attacks), +2 melee damage with STR weapons, resistance to bludgeoning, piercing, slashing damage. They can't cast or concentrate on spells while raging.

The target's rage ends early if they are knocked unconscious or if their turn ends and they haven’t attacked a hostile creature since your last turn or taken damage since then. Theycan also end their rage as a bonus action.