Fully ready to dispute that, she wound up her magic to toss the rock away when it opened a pair of pearlescent blue eyes and chittered at her. "Eeeyaaah!!" Twilight tossed the rock away, but it flashed green, changing form into a chitinous black pony-like creature, that she knew full well was a changeling, and caught itself on its wings, soaring back up towards her as the area around them lit in with an eerie green fire as the other rocks turned into changelings.