Spiritwrack - Level 7 Conjuration

7th level Conjuration

Cleric, Sorcerer, Wizard, Warlock

Casting Time: 1 Action (Ritual)
Range: 100 ft
Area of Effect: One fiend within range
Components: V, S, M (Illuminated vellum scroll with bound entities true name written on it with special ink and dyes made from crushed gems, ichor and other materials. Scrolls takes 8d4 hours to make and costs 6,000 gps. It is consumed by casting this spell)
Saving Throw: See Below
Duration: 3 rounds (Concentration - Can't take any other actions or spells ends)

This spell allows you to torment and weaken a specific fiend that is physically present on the same plane as you. It does this by inflicting increasingly unbearable pain and then harm on the entity, and some will automatically agree to the caster's demands the moment they realise what is about to occur.

Before you begin the spell, you must have prepared the scroll (see material components), and must be within 100ft of the target. As soon as you begin to cast the spell, the target must make a Charisma saving throw. If it fails this, it is paralysed for the duration of the spells, and is almost certain to try and escape to its own dimension if able to. Otherwise, it is immediately afflicted by increasingly horrific pains and distress.

At the start of the second round, the target suffers 11d10 bane damage (or damage equal to 50% of their total hit points if this would reduce them below that amount), and their agony increases still more.

At the start of their third round, the target suffers damage sufficient to reduce them to 0 hit points, and they are banished to their home plane for 1 year per level of the caster of the spell.

Clearly, casting this spell earns the caster the enmity of the target for all eternity. It is often used as leverage when a mage is trying to force a summoned entity to obey their commands or to forge a bargain that suits them. However, most spell casters are loathe to work this spell to its conclusion, for it is very likely that the hate filled entity will soon seek them out when able to return to their plane of existence.