As an Umbral Knight, you have mastered the destructive forces of the dark. Your sword swings rot anything they cut, spreading decay with every strike. You call upon the bones of your fallen enemies to shield yourself, creating a barrier of death. Even your blood is a weapon, burning and poisoning all it touches. You are the embodiment of umbral touch, sealed away for centuries. Will you wield this power for vengeance, for justice, or to plunge the world into shadow? Embrace your destiny and let the darkness guide your path.

Umbral Essence

3rd-level Umbral Knight feature

You gain resistance to necrotic damage. You can preform an Umbral Strike once per round dealing 1d8 necrotic damage When you hit a creature with a melee weapon attack. Additionally, You can cause the target to be infected with scarlet rot. The target  must succeed on a Constitution saving throw (DC equals 8 + your proficiency bonus + your Constitution modifier) or be poisoned until the end of your next turn. Additional weapon attacks from you deal 1d8 necrotic while poisoned

You can use this feature a number of times equal to your Constitution modifier (minimum of once). You regain all expended uses when you finish a long rest.

Bone Shield

7th-level Umbral Knight feature

Harness decay to conjure a protective shield made of bones to bolster you when you use your Second Wind feature. This shield grants you temporary hit points equal to the healed amount.

Acidic Blood

10-th level Umbral Knight feature

Your blood becomes infused with corrosive acid, making you a deadly foe to those who harm you. When a creature within 5 feet of you hits you with a melee attack, they take acid damage equal to your Constitution modifier. Additionally, they must succeed on a Constitution saving throw (DC 8 + your proficiency bonus + your Constitution modifier) or be poisoned until the end of their next turn. On a success, the creature is immune to the condition of this feature for 1 hour.

Horrid Strikes

15th-leveled Umbral Knight feature

When you hit an enemy with an Umbral Strike, you can forgo the necrotic damage to make one of the following strikes:

• Leeching Strike: Expend one hit dice to gain hit points equal to the rolled hit dice + your Constitution modifier.
• Imposing Strike: Impose the Frightened condition on the target. The target must succeed on a Charisma saving throw (DC 8 + your proficiency bonus + your Constitution modifier) or become frightened of you until the end of your next turn.

You can make either of this strikes up to your Constitution bonus, recovering on a long rest.

Resilience Rot

18th-level Umbral Knight feature

Your dark magics further enhances your abilities when surrounded by death. Gain an additional use of Second Wind before needing a short or long rest.

While you have temporary hit points from your Bone Shield feature, you gain resistance to all damage except radiant damage.