Sooner or later there going to be a villain the mane 6 can’t beat.They beating a evil alicorn(nightmaremoon)a god of choas (discord) a bug queen(queen chrylisa) a evil unicorn (king sombra) a evil nature force (plunder seeds) a evil centaur (tirek) and a ordinary unicorn who not that evil like the dangerous ones (starlight glimmer).Sooner they might face a evil dragon who want to destory equestria since dragons ain’t friends with ponies.Spike would have to step up to defend his family and home.
like when goku,piccole,trucks and vegerta could’t beat cell but gohan step up and beat him.