Standard and, to a slightly lesser degree, Pioneer are much friendlier formats to decks built from mostly a single set, and the new player is both more likely to see other players playing cards of "their" set and to see other cards and mechanics that could augment their strategy
The other two dragons have to be in the library while Scions on the battlefield
Mystery Boosters are back on the menu
This seems amazing for Commander artifacts decks, though
Not only does the end step trigger potentially draw you a card each turn, Curiosity and its many variants also work for oodles of card advantage
(To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.) Sorcery Color tag templates(None) Color tag templates(None) Season of Weaving Choose up to five worth of modes