It Which Shatters (5e Equipment)

Weapon (mace), legendary (requires attunement)

Annihilation waits patiently to reclaim the universe as its rightful owner. Lend me your arm, and we will give speed to the inevitable.

Description
This mace is made from black steel and covered in otherworldly chiton and bone. The white husk which encapsulates it leaves only a few spots of the mace’s black metal visible, and at times the chiton seems to shift and move of its own accord.

You gain a +3 bonus to attack and damage rolls made with this weapon.

Curse
This weapon is cursed. You gain long term madness that lasts until you are targeted with a Remove Curse spell or similar magic. This madness makes you experience vivid hallucinations of monstrosities which should not be – some have many arms and heads with no faces; others are little more than writhing masses of tentacles. You have disadvantage on all ability checks and you automatically fail any saving throw against being frightened.

Annihilation
Any time you hit a creature with this weapon, you may choose to deal an extra amount of necrotic damage to your target. If you do, you must make a Wisdom saving throw, with DC based on the amount of damage as shown by the table below, taking the same amount of necrotic damage yourself on a failure. A creature reduced to 0 hit points from this damage (including you) is disintegrated as are all non-magical items it is wearing or carrying.

Spellcasting
It Which Shatters can be used to cast the following spells: crown of madness, antilife shell, blight, and weird. Once a spell has been cast from this weapon, that spell cannot be cast from it again until the next dawn. If a spell requires a saving throw, its DC is 16.