Ackster could hold his breath for several hours, and he could go even longer by pushing his body beyond its limits. He hadn't found the opportunity to see how long he could actually go without breathing. But he wouldn't be surprised if he could go several days, thanks to his recovery skills keeping his body in a prime state.
But Ackster's body was already weary from the over usage of Stubborn Well-Being, Diamond Body's recovery, and Limit Breaker, not to mention the beating it had taken when the golem still used a humanoid body.
The fight had also made Ackster winded. He wanted to breathe. His muscles wanted him to breathe.
But the suffocation wasn't the only problem of the golem's treatment.
Ackster couldn't move. But the golem could.
Compared to the room's walls, Ackster's body wasn't significantly softer. But with clay covering the walls, including the area behind Ackster, he was the weakest spot in the room.
