What if Instead just a "hologram" Echo was able to adapt her body to the design of the targeted enemy (FanArt by Dana Pull on Artstation) : r/ Overwatch
Overwatch: Echo Will Be the Game's Last New Hero Before Overwatch 2
Echo in the sky [Overwatch] by Camanimate on DeviantArt
How does Echo fit into the Overwatch meta? - Dot Esports