This guy (Michael Ryan) drew the Pérez costume worse than anyone else, ever - he also drew her Thor guest appearance around the same time and it looked even worse. But it's a hard costume for anyone but George Pérez to draw.
It seems around 1999-2000 there was a brief Wanda popularity boomlet because she was arguably the main character of the 1998 Avengers reboot. She got guest appearances like these and also got her only TV appearance as an Avenger in "AVengers: United They Stand." It didn't last of course. But her guest appearance in Thor is still arguably her best guest appearance ever in spite of the art.