system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] If Darth Plagueis' power to bring people back from the dead was a motivating factor for Anakin joining the dark side then why didn't he bother to try developing that power at any point?

He was supposed to be the most powerful force user of all time as the chosen one right? If anyone had either the motivation or power to wield such an ability it would be him right?
gpt
It wasn't to bring people back from the dead. It was supposed to be the power to prevent death in the first place. 

Either way, Anakin lost the motivation to seek out this power when Padme died. He was fully in the Dark Side and wasn't bothered about saving anyone. Just killing people. It was only after he realised Luke was his son did he start to waiver, and even then he likely didn't bother searching for the legendary power of Darth Plagius the Wise. Most likely Palpatine made it up to manipulate and control Anakin. Even if he didn't, Palpatine likely had that secret on lockdown. Wouldn't want any powerful apprentices going around with even more powers and control over life and death now, would we? So Vader doesn't see a point.  

Perhaps you mean before he turned to the Dark Side? He didn't know where to even begin. He *needed* Palpatine to provide the knowledge to him in order to learn the skill, and it was obvious that the Jedi didn't know (or wouldn't tell him) what he wanted to learn. Anakin had the potential, but not the know-how.