Reappearance

Firstly, it cut off the connection the Sapientia within the tower quadrants had to the Sapientia in the outer quadrants. Because Dyon had the master key array, he could use Little Yang and Yin's historical path time will to learn truths about the rest of the arrays. 

Thanks to this, Dyon knew that the Sapientia Quadrant only had 1 of the 1000 arrays while the remaining 999 were located in the Sapientia Outer Quadrants. 

Dyon knew immediately why this was. That array, it was how they received orders from their true base. So… Dyon destroyed it. However, that wasn't before he set up a few things. 

Though Dyon hated the Sapientia, he didn't believe they all deserved to die. Instead, he used the Master Key array to control the range of the blast. This resulted in Planet Sapientia becoming a ticking time bomb.