The news about cosmetics are not over! Together with two Forged in the Barrens themed The Coin skins, patch 20.0 will also bring to the game a Scholomance Academy themed The Coin, featuring none other than Headmaster Kel'Thuzad's pet, Mr. Bigglesworth!

In order to obtain this cosmetic, you'll have to collect all 135 Scholomance Academy cards.

Even though this wasn't mentioned in the Blizzard's blog post, we are guessing that if you already own all the cards from Scholomance, it will get retroactively awarded to you.