Powers & Abilities Big Mom has the weakest CoC by the newly confirmed CoC rules.

[Master OF Haki]

It's very rare, and I'd even say never, that in the post time skip one piece, a new peace of information fits past events so well. But here we are. From this "sense of self," or whatever that means, we can see that Meme's inability to deal any serious damage to Kid and Law, is due to her fucked up mental state and indentety crisis. Just like Sanji who has to fix his mental issues to unlock CoC, Meme has her own issues that never allowed her to unlock her full potential, while Shanks on the other hand, who has zero mental problems, one shoted Kid.

 

[y0000]

Yonkos nerfed too much. Big mom looks like a normal bad character to me. She doesn't has yonko aura. She was completely bad written by Oda. She lost the battle from noob Trafalgar and trash Kid. Only whitebeard looks like yonko and littlebit kaido too, but nerfed too much and fluffy god fruit change a lot the battle.