Betty, the Volleyball Witch. Her nature is an inferiority complex. She resembles a huge volleyball continually trying to pass over a net which is always raising and lowering to block her and slam her into any unfortunate visitors to her barrier.
Her barrier resembles a combination of a gymnasium and a kitchen. Although the Witch's baked goods on the countertop look delicious, she currently seems solely focused on winning this volleyball game, even though sports are clearly not her forte.
Her Familiars are named Charles and Julia. Escapees from this Witch's barrier claim that they resemble various food-product mascots such as the Pillsbury Doughboy, Mrs. Butterworth, the Quaker Oats Quaker, the Jolly Green Giant, and the Hamburger Helper Helping Hand on various occasions, all of which are dressed in school gym-class outfits. Their duty is to serve the Witch ball over the net, but more often than not they are distracted by the pots boiling on the stove, and occasionally they add trapped humans to the dish. Fortunately this Witch and her Familiars are not very powerful, and several trapped people have been able to escape.
This is Tsukasa's Witch form, as you might have guessed. "Betty" comes from Betty Crocker," Julia" from Julia Childs and "Charles" from Charles Alfred Pillsbury, founder of the eponymous company. Yes, it's questionable how Tsukasa would've known about the latter guy especially, but of course how did Sayaka know about the German poet Karl Siegmund von Seckendorff?
I have a soft spot for Tsukasa (and her VA, Kaori Fukuhara), so I wanted to write this one first. Would you like to see the rest?