DarknessDash [request]

"By Rainbow Dash suddenly letting anger, despair and darkness seep into her heart, RD awakens her element of loyalty with corruption and becomes a Nightmare like Luna, transforming into Darkness Dash.

When in this form. she is mercilessly powerful and fast, her pegasus aura so strong it causes thunderstorms to form just by being around her, and can only barely distinguish friend from foe in her rage induced state."

Request by ~cronomatt