When the Wizard Jack and other magical beings, including a Mummy and a Man-Shark, start taking up residence in Melbourne, the city is thrown into chaos – literally. It's the world-changing turn of events that provides the premise for Wizards of Aus, an SBS series that that is both comedic and –through its sharp satire regarding migration, assimilation and xenophobia – politically clever, writes Cavan Gallagher.