Well, Butterfree gives you a way to heal 20 damage off of every Pokemon on your side of the field once per turn for free: its essentially a free Potion, every turn, for all of your Pokemon
In addition to these bans, which we'll get to in a moment, Wizards has stated they are going through a review of all cards that have been printed and will be taking action on similar cards in the future
EDHREC is now in the beta of OathbreakerREC which will possibly outlive the format, well see
Slowbro If someone told me that I would be including Slowbro in a top ten Pokmon cards, I would have never believed it, but, hey, here we are, living a wonderful time where Bibarel is one of the most popular drawing engines of the game
This means youll be able to cascade into other high mana value cards