Bonus traps from Essen Spielmesse 2019, what are the rules for them?
Someone asked the same question on boardgamegeek, and someone found the rules on the publisher's website, they are:


Music hall (Music note):


Affects step 2 and 4
The wizards can only communicate by singing, the Grimoire is not affected by this token

Raving mad (Cards with the arrows around the outside and question mark on them):


Affects step 2
Take the loyalty card from each wizard and mix them facedown. Deal them to each Wizard. This token is then removed from the game and cannot be pulled again

Aphonia (Speech bubble with the X in it):


Affects step 2 and 4
The wizards can only communicate through gestures and mimes, they may not talk, sing, nor make any verbal noise of any kind. The Grimoire is not affected by this token.