Anti-Wanda's IQ is so low that she doesn't know how to eat properly, and as such she eats with her feet, and much like Cosmo, she foils plans without knowing what's going on. She has a few missing teeth and speaks in a southern accent. Even though she is supposed to be like Cosmo, she is a slight bit dumber.
In April when bad luck happens, the Anti-Fairies were released to do the bad luck, Anti-Wanda was still trapped until Timmy and Cosmo wished them all out. Without knowing that they caused trouble, all of the anti-fairies were released to cause havoc. But they were eventually sent back
when Timmy tricked them into going to Fairy World. They were now trapped in a maximum security prison where the worst villains of all-time were kept. The prison was wish-proof, so no one could wish them out. Timmy made a plan to break Anti-Cosmo out, but every one of them failed, and one reason was because of Anti-Wanda's stupidity
Anti-Wanda speaks in a Southern accent and eats with her feet. Her stupidity is often the cause of trouble for Timmy and her husband. It is unclear whether or not Anti-Wanda is a real threat.
- Anti-Wanda is very similar to Cosmo, but Wanda is not.
- Cosmo had Poof, but Anti-Wanda had Foop.