Boon of Carnage (5e Epic Boon)
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Boon of Carnage
As a bonus action, you go into a frenzy for 1 minute. While in this frenzy, you have advantage on all melee attacks. In addition, when you hit a creature with a melee attack you deal an extra 4d6 damage. When this frenzy ends you gain a level of exhaustion.
You regain the ability to go into this frenzy after a long rest.