Sword of Damocles

As this spell consumes the metal material component, an ornate, softly glowing, spectral blade appears five feet above the head of the intended target of the spell, that the caster can see.

This powerful enchantment firstly brings the Sword of Damocles into being on both the Ethereal and Astral planes simultaneously, making it impossible to interact with until the Sword decends through the Border Ethereal into the Prime Material plane. This conjuration can also be used to full advantage in both the Astral and Ethereal planes.   

The conjurer may decide to trigger the Sword of Damocles immediately, in which case it transforms into an enchanted adamantine blade which descends with a metallic screeching sound. 

Otherwise, the caster may decide to make the Sword's descent contingent on a specific condition, eg "Descend if they attack me or my friends".

If the target successfully saves and dodges, they take no damage and the Sword of Damocles strikes the ground in a shower of sparks before fading out of existence. 

If the target does not save, the sword will deliver 6d8 slashing damage + 6d8 force damage. It will automatically give the target the Restrained condition, the eldritch sword penetrating and pinning it's victim to the ground, before fading from existence entirely at the start of the victim's next turn.

*Resistance vs slashing damage doesn’t apply to adamantine weapons.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the force damage is not subject to any natural or magical resistances or immunities.