Senior game designer Daniel Holt explained that the decision to have each deck themed around one game allowed the team to "dive deep into the lore of each, capturing even more beloved moments from across the games storyline." When asked exactly how Wizards of the Coast came to choose the games that would be included in the crossover (I'm slightly disappointed Final Fantasy 9 didn't make the cut), Holt explained that Final Fantasy 7 and 14 were the clear picks due to their popularity, but that Final Fantasy 6 and 10 were chosen partially due to how many fans of those games were among the Wizards of the Coast team
Same can be said for Specimen Collector
As floods and screws are the extreme ranges of Magic the range on level up best comes in to play
their opponent cant do anything against them anyway
A one-mana commander is hard to hate, and maybe you can make this into some 'live fast, die fast' kind of deck, that wants to burn through its life total as quickly as possible - very on theme
Its hard to quickly process and give feedback on a 100-card singleton decklist just due to the sheer volume of cards and all their possible interactions