Vita Aeterna

Vita Aeterna is a once in a lifetime spell that makes the caster immune to death of any natural cause like aging or diseases. The caster needs to choose an object which can contain half of their soul, this is normally half the size of the caster or a specially magical object or a part of the body of a legendary creature. The caster has to be in their full life at the moment of casting the spell and has to be in touch with the object for 72 consecutive hours; half of their soul will be stored inside the object, this will have many consequences:

• Both the caster and the object will stop suffering damage from any accidental event, for example: stones falling on top of them due to an earthquake, an arrow hitting them while not being purposefully targeted at them, etc.
• Both the caster and the object will stop suffering the physical pass of time ie. the caster won't ever physically age any older than the age they were at the moment of casting the spell and the object will never erode, rust, bleach, etc.
• As half the soul of the caster will be stored in the object, the caster will permanently loose half the life (hit points) they had at the time of casting the spell.
• The caster and the object can only be damaged consciously and with purpose by a sentient creature different than the caster, and it has to be by their own choice, not forced by another spell to do it. (You can not use a spell to force another creature to damage the caster or the object) This damage will be reflected on both the caster and the object, for example: if the caster is hurt by the swing of a sword, the object may now have a scratch on its surface and if the object is scratched, they caster may feel as if they had been stabbed.
• Any healing will also be reflected on both the caster and the object, if the caster heals themselves to their full life, the object will appear as brand new, and if the object is fully repaired the caster will fully regain their life.
• The spell can be dispelled at any time the caster decides to, but they will never recover the other half of their soul.
• In order to end the caster's life, the object has to be fully destroyed: smashed all the way down to pieces, burned down to ashes, etc. If not the caster will always stay at the brink of death, but not dead (they will keep one hit point).
• If the occasion ever happens that the caster gets to have only one hit point left, then they will not be able to ever recover any more of their life and will have disadvantage at any throw they make. If the object receives any damage while the caster is at one hit point left, then they will both be destroyed.

If the caster stops or is forced to stop touching the object during the 72 hours necessary to store their soul in the object, then they will loose half of their life (they will loose half their hit points, though not permanently) and will have to start from scratch again.

The caster doesn't need to have the object with them after the spell has been casted.

After casting the spell, the object and the caster will now have the same hit points, example: if the caster had 200HP at the time of casting the spell and they stored half their soul in a chair, now both the caster and the chair have 100HP.

The object is indistinguishable from other objects that are "the same object" (if you have a set of four chairs and store your soul in one, it will still look like the other three chairs) except for the fact that at full life of the caster, the object will look in perfect condition.

The object DOES NOT inherit the caster's armor class.

Any state that the caster is put into, will not affect the object unless the state causes damage to the caster.

For the spell to truly happen the caster has to cast it consciously and with purpose.

The spell can only be performed ONCE in the caster's lifetime.