In their team, James is basically the leader and also the one who arranged the strategy. After all, the Ruler Family was known for their strong brain rather than their strong fist or other strength. Whenever the matter needed them to think, they would throw the problem to James Ruler.
Anyway, they believed in him.
"I'll arrange it." James nodded with a frown. "But in this way, I'll need you to stay on the forefront on your own, Lucy… can't you use your family's transformation magic?"
The Moon Family's strongest magic was their transformation magic. The transformation magic allowed them to grow strong furs all over their body, which gave them unparalleled defense. This was another magic aside from crystal armor that had caused many people headache.
The difference is that the Moon Family only has this one special magic and only a limited number of people could awaken it.
Others?
They might have the surname 'Moon' but they couldn't even use the basic transformation magic.