Season 1 Episode 22: "Roots of All Evil Pt. 1"
Episode 22
Written by: Gillian M. Berrow & Tony Fleecs
Song: "Magic in Us Remix"
Synopsis: The ponies need to figure out how Opaline is stealing the Cutie Marks — and fast! Luckily, Opaline isn't the only pony with dragons on her side.