Rage of the Savage Attacker

Origin Feat

You’ve trained to deal particularly damaging strikes. Once per turn when you hit a target with a weapon, you can roll the weapon’s damage dice twice and use either roll against the target. Your spells also do 1d6 extra damage and if you are a Warlock one of your spells does not cast a spell slot until you use it again once that happens you must pick another spell next time. This second effect can only be used after a long rest.