All three have strong designs that feel like they could support their own decks with interesting mechanics and are only improved with partner
Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way.
Chapter II protects you from early aggression, and Chapter III should draw you at least two cards and potentially more (say, an opponent is playing mana creatures)
With its expansive set of over 190 cards, including 15+ Trainer cards and several special illustration Pokmon and Trainer variants, it quickly gained attention
Masters 25: Uncommons / Commons / Bulk While lacking one super-chase uncommon in the vein of Mishra's Bauble, if you look at the uncommon slot of Masters 25 as a whole, it is very likely the best group of uncommons we've seen in a Masters set, at least since the original Modern Masters