Each Set Booster contains 12 Magic cards, 1 Art Card, and 1 token/ad card, or card from The List (a special card from Magic's historyfound in 25% of packs), with a combination of 15 card(s) of rarity Rare or higher and 37 Uncommon, 36 Common, and 1 Land cards
Id assume Id pick it over most commons, but its not quite powerful enough to be taken over premium spells
Kudos to whomever did this
Cards that play into this style of play are working towards the larger goal of decimating the opponent's hand, and usually then punishing them for having no cards
PrintMTG is also very direct about its positioning: high-quality close match proxies that look great in sleeves, without trying to be a 1:1 replica (for example, they call out not adding holo stamps)