Topi-chin, you know I wouldnt place anyone high if there was no reason for it...
I dont rate him high because of Blackbeard, I think he can take out Blackbeard just like the 99.9% of OP characters.
The secret sauce of Shiryu is the lethality of the swordsman paired with invisibility. Pretty broken combo, no?
I think there is more to Clear Clear no Mi, it cant be that same what Absalom achieved with it or the same as Son of Judge has...
Clearing the visuals, clearing other things could be possible too, aura for example, undetectable for CoO...
King is strong and I would definitely favor him if Shiryu wouldnt have the invisibility. Also, depends on King's application of fire.
If King can spread fire around himself, then the invisibility wouldnt do Shiryu much good, he would be detectable because of flames and he probably wouldnt be able to stand in them anyway. Overall depends on King's abilities if he has ways of detecting the invisible guy.
He detected Son of Judge, who knows, maybe he detects Shiryu as well.