Bro, none of that are destructive fire attacks lol. I know that King is physically a freaking beast - he doesn't have to demonstrate better stuff than that, it's clear. However, when it comes to his fire attacks, that's the part in which his other Zoan abilities rather dwarf his own fire skills. King got consistently hyped as a powerful Lunarian who "is a monster who survives on any environment" with his race exclusive abilities. At the end, we learn what his ability is about but honestly, I immediately had the thought: "Okay, that's it?".
I expected attacks which rather fit his epithet "wildfire" tbh.