Adventurer's Inn was used to showcase the card type, basically being a Radiant Fountain with an extra subtype
Packs focus on Tarkir Dragonstorm themes, including powerful dragons, spells that fuel big plays, and flavorful mechanics tied to the plane of Tarkir
There may well be some wild combo decks with this in Commander, but outside of that, this feels like a total miss
Its totally possible to have just one daybound/nightbound creature in your Modern or Legacy deck, where the time of day may feel like a bit of extra text on that one card
Emry, Lurker of the Loch She's so pushed in power that she looks like a Modern-only card from Modern Horizons
I even narrowed the scope of this list to include only cards that physically draw more cards rather than just providing card advantage such as a Bloodbraid Elf