Dabi

Dabi is from my hero academia, he's now in the my little pony universe and is a unicorn, his cutie mark is a blue flame on his flank also known as his thigh, his father is King Sombra in this universe, there trying to figure out a way to take over Canterlot and the Crystal Empire with Queen Chrysalis and her army of changelings, the changelings didn't reform in this universe cause Thorax the changeling was captured by Queen Chrysalis before spike found him and reformed him.