A growl vibrated in my throat. Purple and green spots began to appear on my horn as I cast a spell teleporting myself into the crystals that made up Luna's cage.
"Luna." My face projected onto every smooth piece of crystal inside, "You and I are not so different. I command sinister shadows and you control the moon. We go hoof in hoof. I can't make shadows without a moonlight and you need my shadows to complete the night. Your sister stands in the way. She fails to see your true potential and power. We could bring forth nightmares from the moon and terrors from the shadowy crevices. Your sister doesn't love you. Love doesn't exist. Everypony dances throughout the day then sleeps at night and ignores your masterpiece. But I, I have noticed your night sky and have admired it many a time." I released a wisp of dark magic which found its target on Luna's horn. "Use this power wisely. Recreate Equestria. Cast down your enemies. Poison them with your triumphs." space and time warped as I teleported out of the crystals.
Celestia had regained a full stance. Her body was fragile and battered yet she stood proud and valiant.
"Sombra. It doesn't have to be like this." she begged.
"Oh but it does." I replied with derision in my voice. A crystalline blade came to my side. I chuckled as I charged forth planted my sword upon Celestia's horn then twirled to cut her legs. She stumbled but remained standing. I swung again and again slashing her white fur. Blood streamed across her body turning her coat red. A steady stream of blood flowed from various points on her body. Three puddles accumulated below her broken frame. Determination was still imprinted on her face even with blood dripping from her mouth. "The weak show sympathy and pay for it. Your heart pumps life throughout your body but now it betrays you! This is a cruel world, learn to be what they call cruel and unjust and you shall thrive." I spun my black blade readying it to strike a final blow.
"Enough." she muttered. A flash of light slammed me back disintegrating my sword.
"Now Luna!" The black prison was glowing from inside. Pieces of crystal flew everywhere from Luna's blast which then turned to me. Both alicorns honed in and fired on me. My body became weak. Weak? Me? Jolts of pain surged throughout my body amplified by my metal armor. I was tossed into the air and slammed against an obsidian mirror cleverly disguised against the wall. I fell alongside shattered fragments of obsidian.
"What's that?" Luna questioned noticing what was hidden behind the mirror.
"The crystal heart!" Celestia rejoiced.
My heart burned with hate, boiling to extreme temperatures and rising still. There was a reason I hid that abomination. A reason that did not need to be known!