Istersiva, The Crystalline EntityEdit
A mysterious crystal that pulses as if alive, and is filled with impurities that look almost like internal organs. It attacks with intense bursts of an unknown energy. Guardian of the Darkness Statue.
Istersiva in its first phase.
Istersiva in its second phase. It is hiding the soft insides with the crystal shell.
Istersiva in its second phase with its insides exposed.