mtg card symbol meanings How to Play Every Mana in Magic: The Gathering MTG card rarity explained -

One format wont have primacy over another, said Steefel, and the two will have to work together to get the essence of the cards to work

There have also been decks that fuse the Fae-Ninja engine with Affinity, and I definitely see this Ultrom in those shells

Tutors have high potential payoffs if you can slow down your opponents, and you can play your new faerie on your next turn without missing a beat since this card can be played during your opponents end step

Many creatures have a "party creature type" almost coincidently tacked onto them, too, so the deck gets to play some generally powerful creatures that overlap with the strategy