Crystalia Amaquelin (Earth-4141)

Crystalia Amaquelin, or Crystal, is a Lady belonging to the Royal Family of Attilan—a dynasty of Inhuman nobility—with control over the classical elements and other energies. As the younger sister of Medusa, Queen of the Inhumans, Crystal held an important role as a royal delegate and liaison between them and the world.

Crystal has been a functioning member of both the Fantastic Four and Avengers. After the Terrigen War began, she became one of the founding members of the Arbiters seeking an amicable end to all Mutant-Inhuman hostilities.