Here's a drawing of the witch Somnambula from My Little Pony N' Friends.

Somnambula used a magic crystal to drain the youth and magic of others for herself. She would have a bird she captured to sing a hypnotizing song to lure them to an amusement park she conjured up so she could keep draining off of them.

Last I checked there were no drawings of Somnambula (not the pony with the same name), so I made this to fill the emptiness.