His -2 allows you to dig for answers, while his -7 ultimate gives you an emblem to untap all your permanents and draw a card at the start of each other players turn
BrainstormBrainstorm - Card Draw (458,473 Inclusions, 23% of 1,998,487 Decks) Let's be honest: Multiple copies of BrainstormBrainstorm isn't going to do you much good if you don't have instant speed shuffle effects
The first is the easiest: If you have a Yawgmoth, two undying creatures, and a Blood Artist, you can have your opponent lose as much life as you have cards in your deck
Once you get to this hypothetical all giant idiots deck that wants nineteen or more mana sources, then I'm excited about Careful Cultivation, but it's a support piece and not an incentive
Scholar of New Horizons Scholar of New Horizons removes a counter from any of your permanents to draw a plains, and it even puts that land into play if someone has more lands than you
Ease of use is one reason MTG: Arena is the most popular way to play rotating formats like Standard