If your goal is casual play or playtesting, proxies can be a reasonable alternativeas long as they are clearly disclosed and used ethically
While the "ease of flipping" category is, in large part, a product of the number of defense counters on the battle (battles range from three to seven defense counters, and a battle with three defense counters will be much easier to flip than one with seven), it also takes other factors into consideration, like whether the battle makes creatures (if so, we can use them to help defeat the battle, making it easier to flip) or whether the battle acts as removal (which can get a blocker out of the way, making it easier to attack and defeat the battle)
Final Fantasy means a lot to me, as Im sure it does to many other fans around the world
This makes them incredibly useful in a wide range of decks that dont have mono-greens ramp
You may cast the copy by paying 3 rather than paying its mana cost." Equipped creature gets +0/+2, is a Wizard in addition to its other types, and has "Whenever this creature attacks, exile up to one target instant or sorcery card from defending player's graveyard