Here's a fun idea. If Square had Spirits what effects would they have?
Let's be real. Sakurai is savage and would make Aerith have an effect on sword damage.
Cecil(FFIV): reduces physical damage taken
Terra(FFVI): magic attacks will have their power significantly increased when using transformation items
Celes(FFVI): negates all energy-based projectiles
Crono(Chrono Trigger): grants immunity to time-altering effects(Witch Time, Vision, Chaos Control, Stopwatch, Slow/Fast Smash)
Ophilia(Octopath Traveler): fighter will gradually heal damage
Cyrus(OT): moves with sweetspots have their power increased
Tressa(OT): increases rewards at the end of a battle
Olberic(OT): significantly increases damage during 1v1 battles
Primrose(OT): damage dealt gradually imcreases as the fighter is damaged
Alfyn(OT): increases the effects of all throwable items(not just damage, but Healing Field's heal, Pitfalls bury duration and so on)
Therion(OT): hitting an opponent with an item equipped will steal their item
H'aanit(OT): deals extra damage to animal or monster fighters