Putting the gameplay mechanics tag since they are talking about how different magic tends to be in the different Fire Emblem games, with the punchline being you have to use your own HP to do magic in Echoes.
Circumstances For Magic in Every WorldWhat was that? That sounds scary...I really don't get any of this.How are things in your world?There's isn't a three way deadlock.I see. In this world, magic is in a three way deadlock.Shall I teach you?It goes Fire->Wind->Lightning->Fire. Light and dark magic have an advantage.Huh? It's not Red->Green->Blue->Red?Wait! It's Dark->General->Light->Dark?It's not Sword/Magic -> Axe/Bows -> Spears/Hidden Weapons -> Sword/Magic?We have to shave off our own HP to use magic.