Emerush

Emerush is a special used by Reva.

When activated by a user holding an emerald of magic properties, it will boost their speed and attack, as well as allow them to pelt smaller emeralds at their foes that disappear when the special is over.

Appearance
The user is cloaked in a green (or other color) aura depending on the appearance of  the emerald they own. Their eyes will glow the same color as the gem, and they will have enhanced strength and speed. The small emerald bits are more like fragments, and only pieces smaller than the original are generated, never larger.