Shadow Energy

You can gain Shadow Energy. The amount of Shadow Energy you can gain is 4 points at First Level. As a bonus action, you can gain 1 point of Shadow Energy if you have dealt or taken damage this round of initiative.

Upon reaching maximum Shadow Energy, you can enter Shadow Form, and use Shadow Abilities. While in Shadow Form, all Piercing, Bludgeoning, and Slashing Attacks change to Necrotic damage.