The general idea of an elf deck is to jam as many elves into play as possible, using all those cards that tap for multiple mana to cast many, many spells a turn alongside effects like Glimpse of Nature and Champions of the Perfect to draw a bunch of extra cards
This creature type focused trigger doubler is going to be gas for certain decks, but will do very little for other decks
Im most excited, however, to mess around with the huge range of new possibilities for the Grass decks, combining Serperior and Exeggutor
As often as you like during your turn (before your attack), you may move a Water Energy attached to 1 of your Active Pokmon to 1 of your Benched Pokmon
Thats not the point here, though, because the aim of all of these - aside from money - is attracting attention