Rainbow Dash sets out to defeat the legendary witch Twilight Sparkle and collect the five hundred million bit bounty on her head. The one thing she wasn't counting on was Twilight being less evil than she expected.
Archmage Twilight Sparkle barely sleeps between her duties, her research, and raising Spike. Now she also has to deal with an evil goddess’s return. It would have been nice if Celestia had mentioned she has a sister a year ago…