Her gemstone is an amethyst, which is embedded in her chest, that she can use to summon an energy whip, and she can also charge at opponents with a "spin attack", which is very similar to how Sonic the Hedgehog can do it.
Her gemstone is an amethyst. She can use to summon an energy whip. An amethyst is embedded in her chest. Her chest is this. She can also charge at opponents with a "spin attack". A "spin attack" is very similar to how Sonic the Hedgehog can do it.