The inability to make mana for things like Nissas Pilgrimage, From Beyond, Nissas Renewal, Ugin, the Spirit Dragon and basically any plain ol spell restricts you to a very creature-heavy build
With enough practice you will be able to do it
The fact that this set is offering up ten potential playables already says a lot about its power level
Play boosters contain 14 draftable cards, which Wizards determined works well for the draft format
This cards reverse side, Avacyn, the Purifier loses Vigilance, but gains a +2/+1 buff and also deals three damage to each creature and each opponent, likely wiping the board of an aggro piloting opponent clean
Improvements + Cards To Drop What this deck lacks is ways to do cheap damage for combos, lore gain, and late-game comeback cards