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. Despite this Timmy and his godparents were able to get Anti-Cosmo out and were able to do the Fagiggly Gland surgery for Cosmo. Later she broke out thanks to Professor Calamitous. She was recaptured however thanks to Jimmy's modified Hyper Cube. After that she is usually seen in Anti-Fairy World with the other Anti-Fairies and her husband.
In the television special Anti-Poof, Anti-Wanda gets pregnant and gives birth to Foop. Later on, Foop betrays the other Anti-Fairies by turningAnti-Fairy World into a happy and colorful place. Despite this betrayal, when Foop is defeated Anti-Wanda still loves her son and shoves a bottle in his mouth when he was crying. Later on, she and Anti-Cosmo brought a cake with a metal file tool stuck in it so that he could try escape from his "maximum security time out" at Abracatraz.
- Anti-Wanda is reckless and incredibly dumb. Wanda is smart and not reckless.
- Cosmo gave birth to Poof, but Anti-Wanda gave birth to Foop.
- Anti-Wanda doesn't nag anybody, but she does end up annoying people with her eating habits. Wanda does nag people.
- While Wanda eats with her hands, Anti-Wanda likes eating sandwiches with her feet.
- Anti-Wanda hates chocolate. Wanda LOVES chocolate.
- Anti-Wanda rarely gets angry (as opposed to Wanda, who's often temperamental).
- Wanda makes food that looks good but tastes awful. Anti-Wanda makes food that looks awful but tastes good.
- Cosmo had his baby in 3 months, Anti-Wanda had her baby the second she found out she had cravings.
- Fairy Baby's are round, Anti-Fairy baby's are Square