godadi
Goodness, if she ever finds out that there is another doppelganger in a future mission or something, she needs to not do that one, trade with someone else, or bring a few people who can hold their own. As someone said last chapter, Tang Li Xue's main weakness is someone who copies your abilities. Thanks for the Chapter, and I cannot wait for the character growth that this will bring!
She needs to one-shot it while it doesn't have the Aegis. As the White/Black fox, it's too strong, but its HP is vulnerable. As TLX, it's immortal. Maybe a combination of the boot's teleport, and the gauntlet's critical strike with a point blank Rasengan, or Kamehameha. The timing will be an issue, so Yaya's speed would be needed, but both pets are KO. The turtle's clones are a close second; btw good thing the Doppleganger isn't using this skill.