One of them could always find divine crystals by spending some lifespan, the second one could always retrieve the divine crystals no matter where they were, the third one was able to rewind time and make it so that the first brother didn't need to spend his lifespan for them to know where divine crystals were.
Because of their powerful and complementary abilities, the three brothers were set up to become the richest Dao Lords. Unfortunately, they died or fell from their position as Dao Lords. This left room for Heavenly Eye to shine and compete with Tepid Scholar.
But despite the vast amount of divine crystals at their disposal, the two of them didn't compete with each other for the Cosmic Dao and the subsequent Supreme Metacs that they were interested in. Instead, they chose to work together.
