Since there are literally thousands of different cards, decks vary greatly
Distribution and quality of overall cards (ramp, interaction, draw): There are only a few actual ramp pieces present in the deck, though there are several ways of generating treasures to accelerate your plans
White has a theme of drawing cards whenever a small creature enters, so cards like Welcoming Vampire, Mentor of the Meek, and Tocasia's Welcome are huge additions to token decks
Blue has some particularly effective counterspells, like Syncopate and Dissipate, which can stop any Exile removal spell in its tracks
Even without its eminence ability, this card is a perfectly solid legendary knight
With all the support Constructs have been getting recently, we cant be too far away from a legendary creature that really cares about them, so Foreboding Statue might be something to keep an eye on