There's a wide variety of instants, sorceries, and even cards that interact with a few specific mechanics that will help you get ahead in card advantage, the iconic concept Magic: The Gathering players constantly look for
It was so much fun to build this deckI remember hearing Mark Globus, the original designer on the Vision Design team of this deck, tell story after story of cards he selected for it
More often than not, Rare and Mythic Rare cards are the chase cards of a set, but not every Rare and Mythic Rare is expensive
A big difference between this and Map is not that this needs five things and Map needs 3 but that Map is a guaranteed progression each time while Gateway really isn't
As is the case with most Rainbow Secret Rares with complex designs, the colors don't exactly do this card many favors with Gladion and Silvally blending into each other
I am always happy to have one of these in my deck