Here is the super wicked and evil

Queen Chrysalis

Queen Chrysalis is a scheming, cruel, fierce, and manipulative individual whose primary concerns are gaining power and feeding her changeling subjects. Upon perceiving Twilight Sparkle as a potential threat to her plans, she turns her family and friends against her and enjoys mocking her both during and after Twilight's imprisonment in Canterlot's underground caves. While capable of mimicking Cadance well enough to fool most, she is unable to fool Twilight due to their close bond and her demanding and insincere behavior displayed in A Canterlot Wedding - Part 1.
"A lot of her personality is revealed" in the comics.​ Comic artist Andy Price stated on February 28, 2014 that "Chrysalis is beyond villain- she's a monster".

Queen Chrysalis—a changeling—is able to shapeshift her physiology into any pony of her choosing and absorb the love of others as a source of food and strength. After feeding on enough love, she is able to use her magic to overpower powerful figures like Princess Celestia. She also has the ability to put others into hypnotic trances, as seen when she brings Shining Armor, Minuette, Twinkleshine, and Lyra Heartstrings under her control.