Dr.Whooves made it back just in time. Not that the TARDIS could miss all time ever being frozen.Think. All time ever being frozen.
Twilight had been resting in her healing pods for a while,and nearly used her alocorn Magic to show what she needed to. Similar to Trixie's flashback,it was a big rectangle.clearling showing something. But this time,it was the life of Sombra.
"And he took off to the crystal empire,casting hundreds of dark magic spells,as the magic overwhelmed him. This is the end of the history portion. Emotion comes in now. You see, Dark magic is powered by hate,anger,chaos and disharmony.
"Like Prisma's magic necklace,the dark magic enhances itself with the emotion of the user. Only if it's anger ,fear ,sadness, disgust, sorrow pain,chaos ect.
"Sombra had a raw mind to dark magic,and his heart was not pure. He wished for his parents to suffer because they left him at an orphanage. He wished for the orphanage keepers to suffer because they had not treated him like a king. That emotion,let the dark magic come in more easily.
"Similar to nightmare moon and her ordeal, the dark magic went to places in the brain where that pony would be weak. For Sombra,it was his abandonment issues. For Luna,it was attention issues,or lack thereof.
"The dark magic ' made a deal ' with the pony,to get revenge on what the pony wanted,and the dark magic would get their part of the bargain later. But the ,agin already got it. Someone to control to do dark deeds. It then corrupts a pony and makes them suffer,while giving them a little freedom to think. It takes over,and crushes the living soul out of a pony if it's too late.
"Luckily,if you didn't make a deal with dark magic,you're in the clear. Most unicorns can't even wield dark magic,much less summon it. (As in find it. ) dark magic can put itself anywhere with enough evil.
"Annnyway normal unicorn magic is like the magic by the elements of harmony.it is powered by love and friendship. That's how,During Cadence and Shining Armor's Wedding,love overpowered the changeling feeding ability.
"It was the same magic,but love not friendship powered. The other times the elements were used,it was powered by friendship. Each time the bearers had to use them,their friendships were tested. They stayed together and were used at the enemy.
That bond of friendship,their emotions,power the elements and bring harmony to Equestria. If not,the world would be in eternal night and chaos,be run by changelings,covered in vines and noon would have cutie marks."
The crusaders fainted.