Chapter is called "The Burnout Inferno 2"
Wonderwyce was only created to seal Yama's abilities, but he lost his speech, knowledge, memory, and reasoning.
Yama appeared to be in trouble, but he knocks him down with his right fist. (technique called 'one bone' or something like that)
The punch is so hard that it creates a hole in WW's abdomen.
"You thought you could defeat me by sealing Ryuujin Jakka?"
That he's been the Captain Commander for 1000 years means there isn't a shinigami stronger than him born in the last 1000 years.
He aims a punch at Aizen's chest, but WW blocks it.
An intense battle unfolds and WW grabs his two hands. A large number of objects resembling arms sprout out of WW's shoulders and beat on Yama continuously.
However, they are ineffective against Yama. "Are you finished?" he asks WW. He then rips off both of WW's hands/arms.
"At least you aren't in the form of a child. I can beat you to death without hesitation."
WW responds with his usual moaning, but it's with fear of Yama.
With both fists Yama pounds WW in the abdomen (technique called 'double bone'). That's it till next week.