There are apparently over 100 Legendary creatures in the MTG Final Fantasy set (Commander players, get ready to do some deck-building) and 55 of them are set to get special borderless character cards with backgrounds that illustrate their first appearances in the series
One option is to build around combos
Whenever one or more land cards are put into your graveyard from anywhere for the first time each turn, create a 1/1 green Insect creature token
These include cards such as Alisaie (reduces spell cost), Alphinaud (draw), Archmage of Runes (cost reduction, draw), Fandaniel (surveil, direct damage), G'raha Tia (creature tokens), Hermes (creature tokens), Krile (graveyard return), and many more
Limit Break is all about getting your creatures to 7 power to trigger additional effects from Cloud or Tifa, while minimizing equip costs to allow you to switch gear and keep opponents guessing
Make them pay for it