You channel dark energy through your weapon and make a melee attack against one creature within range. On a hit, the target suffers the weapon’s normal effects, and shadow energy seeps into the wound. The target takes an additional 1d6 necrotic damage, and its shadow lashes out violently if it tries to escape.
Until the start of your next turn, if the target willingly moves, it takes 1d6 necrotic damage, and a tendril of shadow lashes out at a creature of your choice within 5 feet of it, dealing necrotic damage equal to your spellcasting ability modifier (minimum of 1).
The necrotic damage increases as you gain levels: 5th level: 2d6 11th level: 3d6 17th level: 4d6
The movement-triggered damage also increases by 1d6 at 11th level and 17th level.
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