I thought that Skin Invasion would just be too narrow and convoluted to go in any deck what so ever but in testing, again much like Gossipmonger, the Skin Invasion keeps getting played
Smothering Tithe They can call it Smothering Tithe, but this is Rhystic Tithe and we all know it
Both of these extended-art cards and the Commander slot above are treatments that can only be found in the Collector Booster
While Vecna itself is powerful, we can't guarantee that we'll draw all three pieces (The Book of Vile Darkness, Eye of Vecna, and Hand of Vecna), which means the big challenge is trying to make the individual Vecna pieces as strong as possible so our deck can compete pre-Vecna, while also knowing that the Zombie God should be able to take over the game once we find all three pieces
Limit Break is also fantastic on its own
Its also weak to Fire, Flying, and Rock, which are among the more common types of Pokmon