system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR/GoT] let's talk about what really matters: the night king finds the one ring. What events unfold?
gpt
The One Ring has two main powers - 

1. It enhances the user's natural abilities.

2. It can be used to dominate the weak-willed. 

So honestly, it's kind of useless to the Night King. His natural abilities are already immensely powerful. He has superhuman speed and strength, he's immune to fire, he can summon blizzards, and he can raise the dead. Sure, the One Ring might enhance those abilities, but...is there really much to be enhanced?

As for the second power, he doesn't need it. He doesn't need to dominate anyone. He has a completely loyal army of White Walkers and Wights. Why would he take the time to dominate someone when he can kill them and raise them as a Wight anyway? 

And as we saw, it doesn't matter how powerful he was, it didn't protect him from a flying teenage assassin. The One Ring would make no difference in that regard.