Darkness crystals

The Crystals
Ender Crystal- it is a purple/black crystal when shattered it will not kill or hurt dragons but it will destroy certain objects like The Spell Book. Darkness used it to destroy the book.

Nether Crystal- It is a red/orange crystal that is used for some of the spells in the Spell book. it was never used once by anyone yet. currently it is in darkness's mechanical ghost suit.

Darkness Crystal- It is a clear crystal that served has darkness's life source. she carried it in her pouch. when she died it one of the crystals became a crystal ball that is used to communicate to the dead

Staff Crystal- it is a red/purple crystal found in a cave on the island of where the academy is. she has embedded it into her staff for decoration.