Smooth Over works by allowing a player to search their deck for any card, place that card on the top of their deck, and then shuffle
In the anime, it manages to send Alola into a post-apocalyptic state
Of course, with Master Rule 5 on its way in April that wont be as big of a deal, but for the next month, its going to slow things down without some extra help from cards like Cross-Sheep
First, it coined the font ( Beleren, named after the planeswalker Jace Beleren), it added the shiny holofoil stamp to all Rare, Mythic, or otherwise valuable cards, and extended the black border to cover a large chunk of the bottom of the card to help with machine reading - a very useful feature for places like Twitch
Plus the deck has a ton of standalone strong cards in case Plan A isn't working, like the mythic saga cycle