Dreaming of a witch means you are going to unleash the pent up anger and evil brewing inside you. Regardless of who stands in your way, they will feel the full wrath of your destructive powers. This stems from the jealousy of losing a person you love to someone younger and prettier.
You want to wreck havoc to the person who stole your love, at the same time use a complete makeover of yourself to deceive others with beauty.