Es gibt ja die coole Seite Serenes Forest wo man infos zu jedem Spiel nachsehen kann. Also, echt alles. Alle Growthrates, alle Secrets, wie man Charaktere rekrutiert etc. Und bei den Zusammenfassungen über die Spiele steht nunmal das hier bei FE 4:

Zitat Zitat
Weapon triangle

A now renowned feature of the Fire Emblem games. Basically each weapon type fared better or worse against other weapon types. Fighting stats are increased if an advantageous weapon type is used and, conversely, they are decreased if a disadvantageous weapon type is used. The "triangle" part refers to the rock-paper-scissors design. For physical weapons, Sword beats Axe, Axe beats Lance and Lance beats Sword. For magical weapons, Fire beats Wind, Wind beats Thunder and Thunder beats Fire. Bows, Light and Dark exist outside the triangles, although Light and Dark both beat Fire, Thunder and Wind.
Edit:
Ich hab oben FE 3 geschrieben, ich meinte aber FE 4. *fix*