Blackheart Butcher (Patreon)

Weapon (scimitar), rare (requires attunement by a spellcaster)

A sickly butcher’s blade of cold black iron. It seethes with eldritch magicks emitting from harshly carved hex runes. While holding this weapon you can use it as an arcane focus. You gain a +1 bonus to spell attack rolls you make while holding this weapon. This weapon has 3 charges and regains all charges at dusk. Once per dusk in place of an attack you can carve at your flesh to have this item regain a charge, taking 1d10 slashing damage in the process.

Malignant Jinx. While attuned to this weapon you can spend a charge to cast the Hex spell without expending a spell slot. You have advantage on concentration checks to maintain concentration on the Hex spell while attuned to this weapon.

Wretched Puppet. As a bonus action you can spend a charge to make a creature within 30 feet of you the victim of your hideous magicks. The creature must make a DC 14 Charisma saving throw. If the creature is cursed by a Hex spell cast by you, the DC is raised to 16. On a failed save you choose one of the following effects to take place:

The creature must use its reaction to move up to 30 feet in a direction of your choice.

The creature must make an attack against a creature of your choice within range of them.

The creature falls prone.

Curse. This weapon is cursed, and becoming attuned to it extends the curse to you. While attuned to this weapon you are unwilling to part with it, keeping it within reach at all times. While cursed this way you can sense the presence and direction of other cursed items within 60 feet of you. When you sense another cursed item you must succeed on a DC 16 Wisdom saving throw or become compelled to seek out and attempt to attune to the item you sense. This effect ends after 1 minute or if you take damage while compelled, after which you can no longer be compelled by that item for 24 hours. You gain an additional +1 bonus to spell attack rolls you make while holding this weapon for each other cursed item you are attuned to.

The cauldron sputtered in the corner as the hag shuffled 'round the hut, picking and prodding at the various ingredients that littered her home. Having gathered all the necessary components she required, she drew a monstrous slab of iron decorated with carved runes of unknown make from its sheath. With each cut the mound of toad's eyes, newt tails and other unsavory items were reduced to paste and slopped into the bubbling mixture. The witch holstered the monstrous blade, letting it fester even longer in the muck that now covered its already sickening surface as it infused with powers even greater than before.