As with many hyped sets, prices for its rarest cards have undergone significant corrections since the initial frenzy
Sign in to access your rewards
If the trainer meets the high additional energy cost of Beast Game GX, and they knock out a foe with it, they can claim up to 4 Prize cards, potentially securing the entire battle in a single turn
Math and personal experience indicate to me that you'll want to start with 10-15 ramp cards and tweak from there
Bringing the entire Final Fantasy saga to your tabletop usually comes with a pretty steep "collector's tax," but Amazon is currently cutting that price by $76
"Strength" is slightly debatable - a card being Water-type alone doesn't make it stronger - though you could argue the fact there are so many equally strong Water-type decks, more than any other type by some margin, is the definition of strength