I've decided there's absolutely no reason why one key Darth Vader moment from Star Wars Legends shouldn't be canon to The Empire Strikes Back.

A Star Wars Story features Darth Vader's best canon moment, which helps him get revenge for his death in Legends.

Darth Vader lands on a volcanic moon known as Kalakar Six in search of the stolen plans, but instead walks into a trap set by the Prophets of the Dark Side. The Prophets claim that Vader can’t ...