Oda has barely established those "rules" when it comes to Lunarian and he kept things more vague for future encounters. It's as simple as it is.
Cool, can King tank Mother Flame?
Cool, can King tank Mother Flame?
depends, will Mother Flame remove Kings flames? It’s an ancient weapon so that gets some leeway to be discussed but again—Oda is the one who wrote them as invincible when using flames. So any exceptions will be few and far between, but the ancient weapons are likely among those. We’ll have to see.
