Awesome 9th Level spells

[NecroDancer]

Hello forum members

If you could add your own 9th level spell to the game what would it be?

For example...

Soulbind

9th level necromancy

Casting Time: 12 hours
Range: Self
Components: A jar of magical darkness, and an object costing 1,500 Gp
Duration: Instantaneous

You move your soul into another object, once the spell is complete the object becomes a phylactery and you gain the undead creature type, you can also cast the spell create undead 2 times per short rest. Once per day you can also expand a 7th level spell-slot and bring any dead creature back to life, change the creatures type to undead and any damage type (other than piercing, slashing, and bludgeoning) to necrotic, the creature obeys your every command. In order to sustain this spell once a month you must kill a sentient creature, their soul is automatically transferred into your phylactery, if you fail to do this the spell ends and you die.

[Regitnui]

My choice is in my signature.

[RickAllison]

Artifice, 9th-level transmutation

Casting time: 8 hours
Range: Touch
Components: V
Duration: 7 days

You touch a nonmagical item and a willing sentient creature for the duration. A tether of magical energy appears between the object and creature and appears to be flowing from the humanoid to the object. The creature feels its life draining away, with various effects depending on how many days the spell has been cast.

Upon completion of the spell, the creature has its abilities drained to 1 in the order of Dexterity, Strength, Constitution, Wisdom, Intelligence, and finally Charisma. On the 7th day, the person has all abilities and hp drained to 0. When this occurs, the item assumes properties determined by the DM and (if the willing creature was a PC) the appropriate player and becomes a sentient magic item.

The power of the magic item is determined by the CR or class levels of the creature. If 29 or higher, artifact quality. If 25 or higher, it creates an item of legendary quality. If 21 or higher, very rare. If 17 or higher, rare. If 13 or higher, uncommon. If lower, the creature's spirit is trapped in the artifact without effect. A given spellcaster can only have one item created by this spell at a time. To create a new one, the item must be destroyed. A True Resurrection or Wish spell can revive the person and destroy the item.