The Dragon Crystal he handed to Tully was the last piece on Lorne.
However, he felt that it was worth it.
If he could have an Octopus Sea Demon Leader to help him resist the monsters, he believed that he would not have to care about small-scale battles.
In addition, Tully had also said that the Dragon Crystal would give the Octopus Sea Demon Leader greater strength. In other words, the final Boss phantom would be at least a Level 45 Gold Boss or even stronger.
Otherwise, Tully would have advised Lorne not to waste the precious Dragon Crystal.
If that was the case, he would make a killing.
With such a Boss around, at the very least, before the players reached Level 50, Cold Desolate Dragon City should not encounter much trouble.
In this case, Lorne could focus on his mission.