The key limitation to keep in mind is that the enchantment sacrifices itself at the beginning of the end step, so youre working on a clock
3-mana: +: One 0/1 (Nissa, Voice of Zendikar), one 1/1 with defender (Daretti, Ingenious Iconoclast), one 1/1 with upside (Grist, the Hunger Tide, Modern Horizons) 0: Two 1/1s you sacrifice at end of turn (Chandra, acolyte of flame, not actually protective tokens) -1: One 1/1 with flying (Dovin, Grand Arbiter
Collector boosters focus on foils and rare treatments, making them more fit for collectors, while set boosters lean toward casual fun with story-driven cards and regular lands for more regular play
I would feel almost entitled to run this in mono white, given the color can still sometimes feel like its punching up, but what makes white decks able to utilize this well is the lifegain that white can do very well