Based on what I see, it looks like you want to push for the original B-E to be a bit more important in the deck, and you also want to focus a bit more on the Fusion direction
They often let other merfolk be played from the library, create merfolk tokens when their allies enter the battlefield, or have ways to protect each other that quickly add up
What is the rarity of this Shroomish card
A 60-card deck is still good to maximize the potential, but if there are other cards you want in your starting hand, 55 or 50 seems to work to some extent
Then, in 1998, he battled Mark McGwire all season in the home run chase to break Roger Maris single-season record
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