The Draft Boosters contain one land card, nine common cards, four-ish Uncommon cards, and one-ish Rare cards
For Strixhaven, the Lorehold and Silverquill theme boosters are excellent choices as both factions have several vigilance cards
That is changing with Battle for Zendikar Standard since most of the efficient removal is either situational or sorcery speed
It's not guaranteed find a home in Standard, though it has a great chance to, but I'm pretty set on it becoming a staple of Pioneer in Izzet Phoenix decks
Costing just three mana, it is the one that you hard-cast the most often in fact, you will be hardcasting Endurance most of the time, and only pitching it when its very necessary to do so
Their ultimate is where things get really silly though