The Elements of Harmony vs. The Elements of Chaos. Good vs. Evil.
 
Nightmare Moon, who betrayed not only her own sister, but also all of Equestria, represents the spirit of, Treachery!  
Discord, who spreads disharmony to all with no regard for others, represents the spirit of, Cruelty!  
Queen Chrysalis, who uses her abilities to trick people into loving her, represents the spirit of, Deceit!  
King Sombra, who took over the Crystal Empire through fear, represents the spirit of, Anger!  
Lord Tirek, who only cared about growing stronger through absorbing magic, represents the spirit of, Greed!  
And Starlight Glimmer, who lost her only friend, represents the spirit of, Dark Magic!