MLP fun facts #2

Hello its once again time for another MLP fun fact.

Todays fun fact is about Tirek.

Tirek actually appeard in the original mlp series in the first episode ever were he used a dark rainbow to turn four ponies into demonic beasts to pull his chariot.
He was defeated by several ponies who used a magic rainbow of light to destroy him and return the ponies he corrupted to normal.

also I think that the pony of shadows from the episode castle mania may have been Tirek hideing in the castle until he had regained enough strength to start his evil plans