In Pauper, this adds up fast
As if Shinobi Blade wasnt threat enough, letting Greninja accumulate enough Energy to perform Mirage Barrage more or less spells game over for its opponent
You may find that your most beloved deck is the one that tries to assemble an unstoppable combo by turn three, but it could also be the unwieldy pile where you've stuffed in 20 planeswalkers and only use cards that feature silly hats
This thing loves blink and midrange that loads down decks with ETB stuff as well the needed triggers of dying things in Aristocrats and Sacrifice-matters, Artifact decks, even a Solemn Simulacrum that most run is quite doable
I would have also liked to see a Combust or a Fry for Red's Blue/White hoser, but they instead went with Mindsparker, which is an interesting choice when they also have choices like Devout Decree and Deathmark, which are very powerful removal spells
That being said, having a firm grasp on both Innistrad formats will allow you to take advantage of this special format and boost you to Mythic in no time