Mirage

"Me, clever? It's passed down, in a sense. But thank you. Ah ha... Ha ha ha ha...! AAAH HA HA HA HA- *cough* Ergh, I shouldn't do that. It kills."

- Mirage, Popping Party at the Monkey City (Talking to Galaximus)

Mirage is a villainous Roserade from the Sinnoh region (in Eterna Forest), who wants revenge on humanity. She is controlled by.

Moves

 * Petal Blizzard - A 90 base power Grass-type move, Mirage surrounds herself in a tornado of red and blue rose petals before disassembling the tornado to hit anyone around her.
 * Nature Power - A Normal-type move that allows Mirage to take advantage of the environment around her - and upon use, lets her use a move of which she wouldn't normally be able to.
 * If used in snowy terrain, she uses Blizzard - a 110 base power Ice-type move that hits all her foes in the range and with a chance to freeze - at the lack of some accuracy.
 * If used near water, she uses Hydro Pump - a 110 base power Water-type move that hits a single target at the trade off for less accuracy than Blizzard.
 * Poison Sting - A weak 20 base power Poison-type move, Mirage fires poisonous darts at whoever she pleases from her two rose hands. While not strong, these stings will at least cause the injured to stop moving for a second or two.

Natural Cure
Mirage's ability is Natural Cure - and it's effects support her role even more. Upon retreating, anything that hinders her such as burning or paralysis fades away - and allows her to eventually re-enter battle with nothing really in her way apart from the damage she may have took before.

Personality
Mirage is often very secretive, and deceptive. If all else needs to - she will resort to dire circumstances to get her goal achieved. While it is dangerous, Mirage knows this very well. She is a talented strategist, but often underestimates her foes' endurance when she puts her plans into action.

Trivia

 * She was once never going to appear - and would instead be replaced by a Toxapex, but the plan was voided due to the lack of a name.
 * The reason Roserade was chosen over Toxapex was because Bolt has more nostalgic experience with Roserade thanks to the Pokémon anime when Diamond and Pearl were out.
 * The reason Toxapex was a choice though is because it is Bolt's favorite Pokémon overall.