3M would've been so good for the 3rd game imo. None of the cards your opponent picked can really stop them, skarmy would be stupid into zap, and bomb tower/skelly king/mminer would just get shredded.
Plenty of people do prestream countdowns, even WAYYYY bigger content creators. This isn't anything new or bad just is. At least OJ has animation to his instead of a stream with just text.