Blues card draw is fairly important to keeping the life gain deck from falling flat before it can get its engine going
First, is that once a set reaches the end of its print run, there is a finite supply of them in existence
Nissa gives you value right away, she adds to the board, and she represents a late game threat that needs dealing with and she does all this without ever costing anything above the three mana you pay for her
Even in a token deck you'll eventually make 5/5 Wurm tokens and draw five cards if there is nothing buffing them
Your opponent wont see it coming
Eevee Grove : The latest release in the game, Eevee Grove is a strange set because it was thought to be the ultimate expansion for Eevee fans, but it doesn't include much love for the Evolution Pokemon beyond some new Eevee and Eeveelution cards and the new Penny Supporter and Eevee Bag Item cards