I'm not sure what wizard would want Lazav, Familiar Stranger as their familiar, but to each their own
Choosing your own reality
So, for example, if your top two cards are Brainstorm and the transforming double-faced card Delver of Secrets // Insectile Aberration, you will end up with a modal double-faced card in one of the following permutations: Brainstorm // Delver of Secrets, Brainstorm // Insectile Aberration, Delver of Secrets // Brainstorm, Insectile Aberration // Brainstorm
The Barbarian Class remains in play and allows the player to roll with advantage, i.e., use two dice and use the higher result
And since Auras are rarely playable in any constructed format, you can build a deck centered around them on the cheap
Ramp : Ramp decks want to build enough mana to cast powerful cards that are too much for opponents to deal with