Happy April Pools, everyone
In order to grow as a deckbuilder, I have to look at the whole picture, rather than the bits and pieces that fit me
Notice that [casthaven]Merfolk Branchwalker[/casthaven] is uncommon despite, on its face, being a simple example of a new mechanic
After slapping on a few Energy of any typing, you can easily use Genome Hacking to copy your opponents Active Pokemon to attack with any of their attacks of your choice
If I had to list some honorable mentions, they would be as follows: Cavalier of Flame for its role with Fires of Invention Brine Elemental for its role in Pickles Guile for its role in Sonic Boom Fulminator Mage for blowing up all the lands All of the cool Shadowmoor elementals, like Ashenmoor Gouger and Plumeveil (and, hey, I guess Fulminator Mage!) So that's that
Theyre somewhat flimsy, are limited in pages, or can only contain as many pages as will fit on the rings