The Western Pylon accepts red, green, and blue crystals.$B$BThe Pylon focuses on the energy that can be created using red crystals as the main source of power. There are two possible effects: one that increases your protection from damage, and one that weakens an enemy's defenses.$B$BCrystal Ward requires red and green crystals. This will provide you with an increase to armor.$B$BCrystal Yield requires blue and red crystals. This can lower the armor of a specific target.