Under normal circumstances, the power of the Star Alliance's Xiantian Spiritual Treasure, the Celestial Star Array Diagram, could only be exerted within the Star Alliance. To use it beyond the Star Alliance, in the Outer Domain, they needed to occupy a star system in the Outer Domain Star Sea, set up a Star Chart Great Formation, and connect it to the Celestial Star Array Diagram. Then, using the Star Chart Great Formation as an anchor, they could draw down the power of the Celestial Star Array Diagram.
However, that was only the usual case. Things were different for Star Alliance Star Lords who had reached the Eighth-Tier level, or who had gained partial authority over the Celestial Star Array Diagram in advance.
At this point, Star Lords with partial authority over the Celestial Star Array Diagram could directly use their own power to activate the Xiantian Spiritual Treasure and wield its strength in battle.
It was much like a cultivator refining a magical treasure and then activating it to fight.
However, the Celestial Star Array Diagram was a Xiantian Spiritual Treasure, far more powerful and difficult to master than an ordinary magical treasure. Only Eighth-Tier Star Lords, or a rare few Seventh-Tier Star Lords capable of fighting above their tier, could initially refine it and gain partial authority over the Celestial Star Array Diagram.
But once they had refined it and gained partial authority, they naturally possessed the corresponding power of the Celestial Star Array Diagram. Just as with a magical treasure they had already refined, they could directly activate its power in battle.
Thus, Star Lords like Liang Ji, Mentor Chi Yu, and Star Lord Jing Jian, who had gained partial authority over the Celestial Star Array Diagram, could also call down its power on this battlefield in the