You know, I was going to just give him this as a link, but fuck it

The banner of Lucas's family known as the Yūgaukanjō (勇強敢静)

虎獅蜴のよう勇
山のよう強
岩熊のよう敢
波のよう静

"As brave as a Ligagon,
as strong as a mountain,
as bold as a Petraursus,
as calm as the waves"