Earth, Fire, Wind, Water, Heart.
These are the five elements needed to summon the environment's greatest champion: Captain Planet.

When Twilight Sparkle decides to summon this hero to aid in her cause, she didn't count on one teensy hiccup: he appears to suffer a mild case of hippophobia, a fear of equines.

Will hilarity ensue? Or am I just not funny. You, dear reader, are about to find out.