It's double trouble!
The Anti-Triangle attribute is insanely useful, allowing you to pair-up two units of the same weapon class to great effect.
If a sword has Anti-Triangle, it is still for all intents and purposes a sword, but is now weak against axes and strong against spears. This means it'll be easier to proc the Yellow Stun Gauges without needing to use other, less developed characters on your roster. This makes the game that much easier to approach!
