Final Fantasy MTG seems very synergy driven, so make sure to look for powerful card combinations as you build your deck
That works well in conjunction with Gholdengo exs attack, Make it Rain which only costs one Metal Energy to use
A battalion of archers pinging your enemy from the shadowy forest is very on theme
But my experience in the last few years has been that you should probably be packing a few such win conditions somewhere in your list, even if you dont plan to aggressively tutor them up every game
As always, if youd like to discuss this (or any other topic), head over to the RC Discord, where there are specific channels to do just that
Cracking boosters and relying on luck is probably not optimal if you know exactly what you want, so your best bet is to buy singles from online markets like TCGplayer