Kalipsa has 3 similarly made swords with 3 very different abilities.
---------------Kalipsa's first sword--------------
Demon sword "Nefarious"
Kalipsa's long time weapon, forged in the center of the Sanzu no Kawa. THis sword is imbued with the purest dark energy. This weapon's powers activate once removed from it's scabbard. The sword is black with a blood red edge. It is 5ft, handle included, and i weighs 5 tons due to it's material.
Nefarious.....:
Cut through any material with the proper amount of force applied
It can pierce any light or holy forces
It can eat darkness
It is part of Kalipsa's soul and can return to him in an instant
It eats any light that touches it's surface, thereby darkening the area around it drastically
Does not melt
Does not freeze
Does not conduct electricity
Any pure entity that wields it will have his soul and mind devoured, thereby making him a pet of Kalipsa
The sword can cut into the ethereal realm
The sword can manipulate ether
The sword allows Kalipsa to manipulate Ether as well
The sword can't be used in any negative way against it's master.
The Sealing Scabbard "Agony"
The Scabbard that holds the Demon Sword "Nefarious". This Scabbard is made from a tainted material that seals powers,Anythuing that enters the mouth of the Scabbard will be devoured and fed directly to Kalipsa to make him faster and stronger. The outside of the Scabbard is able to deflect any attack and is unbreakable, it is also linked to Kalipsa and can therefore return to him in an instant/
Agony....:
Deflect elements away
Cancel the effects of Nefarious as long as it is sheathed
Cannot be broken
Can return to Kalipsa from anywhere in existance
Can be used as a conduit for his attacks
Can absorb Darkness from it's outside
Absorbs negative energy from anywhere in it's current area (If Kalipsa want's it to)
Feeds the same energy to Kalipsa
Can absorb energy through it's opening
Can cut through light and holy existances, thereby slowly corrupting them