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Force of Will would have been atrocious in the current Modern metagame, enabling the linear combo decks in ways that would have made it impossible for a lot of aggressive and midrange strategies to combat
Faerie Mastermind is my pick for breakout, cross-format all-star in the set, and this deck can take full advantage of him even using his activated ability alongside Sheoldred, the Apocalypse to close out games
A pack of five cards doesnt offer that same potential
This can be a free equip when the right kindred type arrives, but it's fine outside of it
Also exiling is the preferred method of removal for casual formats like Commander since it gets past indestructible things like Darksteel Plate, tricks like Heroic Intervention, and it permanently ends their threat, and they cannot be recurred