User blog comment:Alanomaly/Alanomaly Rap Battles Season 2 - Historical Assassins vs Assassin's Creed/@comment-24322797-20150921134000/@comment-5101200-20150921150837

Ben vs Doctor 2 (and the upcoming Part 3) are between season battles. I don't want them in-season taking up space where I could have other battles and I don't want to make the seasons be 11 battles.

It's a reference to the template at the top of his wiki page on Assassin's Creed wiki.