Echo Terrifies Me

She’s probably going to cause many more issues than she’s worth.

She’s as adaptive as the Sentinels from Days of Future Past: what happens when somebody captures Echo to mass produce her with a darker upbringing…? You think an Omnic Crisis full of Bastions was bad? Omnic Crisis 2 is going to be an army of Echo…

Echo doesnt need copies, she alone is enough to end the world if she turn evil

Makes an army of them much scarier!

I would assume that Echo’s design would be extremely expensive and time-consuming to replicate. They’re not going to be churning her out like battle droids.