[The Low] Shadow Blood (Patreon)

Weapon (any polearm), rare (enhanced attunement)

Forged from the ichor of an undead shadow, Shadow Blood’s fluted blade carries an acid capable of crippling even the mightiest foe. Tales tell of a dark ritual that allow shadow blood’s wielder to strike at a foe through its shadow.

You can use a bonus action to speak this magic polearm’s command word, causing viscous acid to begin oozing along the blade. While oozing, this acid sheds dim light in a 10-foot radius and deals an extra 1d6 acid damage to any target it hits. The acid lasts until you use a bonus action to speak the command word again or until you drop or unequip the polearm.

Enhanced Attunement. Over the course of an hour you can undertake a ritual to permanently sacrifice your shadow to this weapon. After you do so, whenever you are attuned to Shadow Blood, it gains the Shadowpin property.

EA: Shadowpin. As an action while you hold Shadow Blood you can target a shadow that you can see within this weapon’s reach and stab it with Shadow Blood’s pommel-spike. If the shadow belongs to a creature, it must succeed on a DC 15 Charisma saving throw or take 3d6 psychic damage and have its speed reduced to 0 until you stop holding the polearm, choose to release it on your turn (no action required), or until the shadow is moved out of your reach. A creature pinned in this way can choose to repeat the saving throw at the end of each of its turns. On a success it frees itself and can move up to its speed. On a failure, it takes 3d6 psychic damage and remains pinned.

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