The crazy Battle Pack where every monster is of every Type will be the new drafting set for the Top 16 cut, starting with YCS Toronto.
“The upcoming YCS Toronto that runs from September 5th through the 7th is going to have a ton of firsts. It’s going to be the first YCS where Battle Pack 3: Monster League will be drafted in Top 16. It’ll be the first YCS where Pendulum Summoning is legal, the first YCS using the July 13th Forbidden & Limited Cards List, and the first YCS where Duelist Alliance is legal.”
This is also the debut of the new prize card, which we mentioned here.
Source: https://yugiohblog.konami.com/articles/?p=6557