Screen Rant

Obi-Wan Kenobi was introduced in A New Hope... 1 / 8

When he rescued Luke Skywalker from Tuskens. 2 / 8

But he did this by issuing the cry of a Krayt dragon, rather than swinging his lightsaber. 3 / 8

Star Wars: Myths and Fables reveals just how Obi-Wan got the idea... 4 / 8

Because he'd encountered a party of Tuskens before... 5 / 8

When they were being plagued by a Krayt Dragon... 6 / 8

And were sacrificing people to it. 7 / 8

He stopped this, presumably because he feared they'd eventually take Luke! 8 / 8