King's durability without his fire is much lower than Luffy. - Gen. Discussion - Comic Vine

Luffy took ACoC with a smile while King without his fire after he took ACoC from Zoro which is weaker than ACoC from Kaido, King immediately activated

Yonko level Zoro: Why the King of Hell can match the strongest pirates of the generation : r/OnePiecePowerScaling

Luffy vs Dogramag - Battles - Comic Vine

Post-TS Sanji vs 100YQ Gray.Who got treated worse by the Author? - Gen. Discussion - Comic Vine

How powerful is Luffy - Gen. Discussion - Comic Vine

One Piece lightspeed debunk - Gen. Discussion - Comic Vine

Luffy vs Selene - Battles - Comic Vine

Luffy vs 8 Gates Gai - Battles - Comic Vine

King's durability is insane : r/OnePiece

How to anger a One Piece fanboy - Quora

Can Monkey D Luffy (OP) beat Saitama (OPM)? - Quora

How to anger a One Piece fanboy - Quora