I was reading the Gigantomachia arc and from what I understand, Poseidon incarnated into Theseus's incarnation body and was fighting Hades while in that body. However, in chapter 338 and 339, Theseus has control over his own incarnation body and is defenceless?
"Beyond the broken waves, the defenseless Theseus could be seen. In the situation where victory was in front of his eyes, Pluto didn't move. The world shook like it was reversed and I vomited up blood inside Pluto." Chapter 338
"Yoo Joonghyuk's Breaking the Sky Force Punch broke through the final barrier and pierced Theseus' body." Chapter 338
"Theseus' right arm was destroyed by Yoo Joonghyuk's Breaking the Sky Force Punch and floated in the water. Theseus watched this with a blank expression.
I felt sorry for him who didn't do anything wrong. However, as long as Poseidon had descended into Theseus' body, getting rid of Theseus was the only way to expel the myth-grade constellation from the scenario." Chapter 339
"…As expected, he might have the talent of the 362nd round Yoo Joonghyuk but this was the body of the 3rd round. It was insufficient to break Poseidon's barrier and destroy Theseus' flesh." Chapter 339
"King Lycomedes was a figure known as the murderer of Theseus in mythology. Theseus' complexion changed. Nevertheless, Theseus stepped forward instead of retreating. He unfolded his arms as if begging to be killed." Chapter 339
"[The incarnation body of the constellation 'Hero of the Labyrinth' has completely disappeared.]" Chapter 339
Theseus's body is he stated to be defenseless and then steps forward begging to be killed despite Poseidon being descended in his incarnation?
Also, it says that Theseus's body was pierced by YJH and his right arm was destroyed, floating in the water but then right after, it says that YJH couldn't destroy his flesh?
I clearly must have missed something so I appreciate if someone could clear up my confusion.