How do you beat the picnicker ariana in Pokemon tower defense?

It seems like you're asking about a Pokemon game that uses Tower Defense mechanics. However, I don't have any information about a game specifically called "Pokemon Tower Defense" with a character named "Picnicker Ariana."

Could you please provide me with more details about the game you're playing? Knowing the following would help me assist you:

* The full name of the game: Is it a mobile game, a browser game, or something else?

* Platform: Is it on iOS, Android, PC, etc.?

* Any other details about the character "Picnicker Ariana": Is she a boss? A special enemy wave? What are her strengths and weaknesses?

Once I have more information, I can help you figure out how to defeat Picnicker Ariana!