Slytherin and Thunderbird
Slytherin produces more than its share of Dark wizards, but also turns out leaders who are proud, ambitious and cunning. Merlin is one particularly famous Slytherin
"Here’s a little-known fact that the other three houses don’t bring up much: Merlin was a Slytherin. Yes, Merlin himself, the most famous wizard in history! He learned all he knew in this very house! Do you want to follow in the footsteps of Merlin? Or would you rather sit at the old desk of that illustrious ex-Hufflepuff, Eglantine Puffett, inventor of the Self-Soaping Dishcloth?
I didn’t think so."
"For instance, we Slytherins look after our own – which is more than you can say for Ravenclaw. Apart from being the biggest bunch of swots you ever met, Ravenclaws are famous for clambering over each other to get good marks, whereas we Slytherins are brothers. The corridors of Hogwarts can throw up surprises for the unwary, and you’ll be glad you’ve got the Serpents on your side as you move around the school. As far as we’re concerned, once you’ve become a snake,
you’re one of ours – one of the elite." Sounds like medical college.