This week’s Hearthstone Tavern Brawl, When Clones Attack, is handiwork of none other than Zerek, Master Cloner, and not the Kaminoans. Introduced in The Boomsday Project, Zerek is a character unique to Hearthstone. In addition to being a Legendary minion himself, Zerek inspired the Legendary spell, Zerek’s Cloning Gallery as well as the Common spell,…