I'm Fiend-hunting (on Hard difficulty) in Shin Megami Tensei: Lucifer's Call, and I really can't understand Spoony complaining the difficulty by saying the players need a strategy guide or grind/try-and-error for hours. Some bosses can have surprising vulnerabilities (to connect this reply to the thread), but a common sense with choosing universally useful skills and a bit of forethought helps a lot.
For example, on my first try Pale Rider annihilated my team on its second turn of the boss battle, but it fell immediately on the second try when I brought debuffing anti-debuffer
to the battle instead of just muscles'n'attack magic. (I hadn't really used that in normal battles, but fusing that kind of thing "for the rainy day" paid off.)
Much more rewarding gameplay-wise than just the opposing element -system many games have.
For example, on my first try Pale Rider annihilated my team on its second turn of the boss battle, but it fell immediately on the second try when I brought debuffing anti-debuffer
(Ose with Fog Breath, War Cry, Dekaja and Dekunda)
Much more rewarding gameplay-wise than just the opposing element -system many games have.