the most rare pokemon card Extremely Cards 1st Edition Lot The 11 Most Expensive Pokémon

But theres something about a card that you can cast from exile for just 5 mana: Not only do you get a giant beatstick, but also two creatures and two Treasures

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

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

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