Looks like "Nanatsu no Taizai" chapter 176 will be one of the saddest chapters in a while as the Seven Deadly Sins commander, Meliodas will meet his demise in the hands of his former comrades, the Ten Commandments.
Last chapter, Meliodas was beaten to a pulp by his former comrade Estarossa and a brief flashback of his time with the Ten Commandments was shown. Turns out, he was formerly the leader of the team and he was deemed worthy of being the successor of the Demon King. However, Meliodas decided to turn against his own kind, which caused the demons to be restrained for a long time as well as the demise of two former members of the Ten Commandments, who were replaced by Gloxinia and Dolor.
Finding things unbearable to watch, Ban forced Gilfrost to transport him back to where Meliodas is as he cannot let his captain die alone. The mysterious mage eventually agreed and as soon as Ban arrived at the battlefield, he attacked Merascylla by breaking her neck. Every member of the Commandments was shocked as they were not able to detect his presence. In the next chapter, it will be revealed if Ban will be able to fend off the demons.
Unfortunately, early scans of the chapters were leaked online and are currently available over at Manga Mint. In the early released scans, Ban will be easily overpowered by Estarossa and the latter will also be successful in killing Meliodas using his blades. It can also be seen that Estarossa is grieving for the captain's death, as it was stated in the previous chapters that he looked up to Meliodas as his hero.
It looks like the Ten Commandments have no interest in fighting Ban since they know he is immortal. Also, Elizabeth is seen holding Meliodas in her arms and is probably trying to heal the deceased captain. It would be interesting to see how Meliodas will be revived as it is highly unlikely that he will be killed in the series since he is the main character.
Fans shared their opinions on Manga Helpers and some believe they will seek the help of the Goddess clan in reviving Meliodas. Here is the review of the previous chapter.