Throughout Star Wars Rebels, one of Ezra Bridger's greatest strengths is his ability to create connections with other sentient people and creatures throughout the galaxy. His role throughout his time in the Rebellion ultimately was to build bridges between people and creatures to stand against the Empire. In fact, his friendship with the Purrgil is what leads him and Grand Admiral Thrawn to the new galaxy, effectively removing Thrawn as a threat during the Rebellion.
Source：https://www.cbr.com/ahsoka-ezra-sabine-greatest-strength/
