Nightshade is a 31 year old nidoqueen living in the sonic world. She is pregnant (though still has some time before it's time to deliver a little nido). While she is fast, her focus is on strength/power type. She's a fan of the machine based racing. She has the powers of a nidoqueen. She can use items. At times, she would act as a vigilante though her current condition does make it riskier. While she may not display fear often, she will use adrenaline from such emotions. She can be cheeky at times.

Of course a nidoking was the one who got with her.