Vendelo's Bottled Fury

Your magic searches the deepest regrets of your mind, and uses those negative emotions to fuel and create a battle-driven state, which you use to empower you melee attacks.

For the duration of this spell, all of your melee attacks now deal an extra Xd8 non-magical bludgeoning damage, and you add +2 to your attack rolls. At the time of casting, this spell adds 2d8, but whenever you start a new turn under the effects of this spell, you deal another 2d8 damage (After 3 turns 6d8, after 4 turns 8d8 and so on).

For each turn that you start under the effects of this spell, you gain 1 level of exhaustion, but you cannot go over the 3th level of exhaustion with this spell. Instead, you take 1d12+4 force damage at the start of those turns.

During this spell's effect, whenever a creature dies in a 15 foot radius around you, you can increase the duration of this spell for another turn.

This spell ends if you are unconscious. If you are restrained, stunned, petrified, paralyzed or incapacitated, this spell will last for another turn, as long as you still have those conditions by the end of your turn. If the source of those conditions allows you to make a roll to end them, you have advantage.

You are immune to the charmed and frightened conditions when under the effects of this spell.

You are not able to concentrate on any other spells whilst you are under the effect of this one. You can still cast non-concentration spells

At Higher Levels: When you cast this spell using a slot of 3rd level or higher, it will last for and additional turn for each spell slot above 2nd. The starting d8 damage bonus will also increase by 1 for each spell slot above 2nd level.