The Ultimate Copycat Riddle

Your most loyal follower just abandoned you in the dark!

I copy everything you do,

But I'm always one step behind.

I'm darkest when the sun is bright,

But vanish when you need a light.

What am I?

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Got the answer? 👀 

Comment below & see if you’re right → Solution: The Ultimate Copycat Riddle (Try solving it first!)