It looks like there’s going to be an animated series to promote The Boomsday Project! This is being made by the popular YouTuber Wronchi. They have created videos like Uther v Uther and Thrall v Rexxar in the past! Check out the new video below!
As a bonus, they revealed a new Mage Legendary in the video: Stargazer Luna!
Maybe it just gives a minion the mech keyword?
I’m not Sherlock Holmes, but probably the video gives a hint on a new mage spell that turn a minion into a mecha-chicken (casted by scroll of wonder)