We arent given precise counts on either type of booster, but we should keep those relative counts in mind as the set goes on and the prices move
Recent sets like 151 and Prismatic Evolutions have sent people into a frenzy, with some cards selling for eye-watering prices
Even ignoring the questionable potential of his special job, there's no unit that could be remotely worth training up from level 1 this far into the game
That does include the work spent creating new decks and the like, according to Inoue
Originally a pure Normal-type, it gained its Fairy typing in Generation VI, marking a significant enhancement in its battle utility against Dragon-types
Since delve cards consume one resource (cards in your graveyard), they dont work well together