system
Given the following post, respond as if you're commenting on Reddit:
human
[Legend of Korra] In S3E3, it is said that the extreme cold of P'Li's prison keeps her from fire bending, though in the following episode one of the guards fire bends at Ming-Hua right before the escape. How is this possible?
gpt
She's a heat bender and she stuck in the freezing cold without any source of warmth, so all her bending is required to keep her alive and she can't use it to do anything else.  The guards are supplied with warm clothing and doubtless a warm breakroom and can leave for warmer places when they are off duty.  They can spare using fire for something other than keeping alive.