Garlic

Garlic (also known as Deranged Peanut Evolution) is a plant found somewhere in Wario's closet. If Wario happens to eat one of them, the chemicals inside the garlic can cause Wario's gender to change, making him into Wario-Woman. If seen closely enough, they seem to have odd, smug, expressions on their faces, as if they had just eaten a human alive. They have also been found in Shigeru Miyamoto's office desk, to defend against intruders that might come in to steal his Mario cookies.