Echidna's power is, I think, a slight bit misunderstood by some people. At least from what I've seen.
Her cloning isn't just a reroll of a Cape's normal power. It's a reinterpretation from the inputs of their trigger event.
Yes, we're given the impression that it is just a reroll by Krouse's interlude arc. But at that point the only Capes that Echidna had cloned were her fellow Travelers, all of which are Cauldron Capes. They didn't have trigger events. Their powers are a product of a set number of outcomes from a Cauldron vial, said outcomes coming about from a read of the Cape-to-be's brain. And since they remain fundamentally the same in the head as when they drank their vials all they get are slight changes because Echidna's shard just doesn't have anything to work with.
This is also why the Eidolon and Alexandria clones fundementally have the exact same powers but with some slight alterations. Because they're Cauldron Capes.
Brian's clones are a perfect example of this. One of them especially. That being the Warper clone.
Brian's trigger event, the real one not the lie he gave, included a desire to escape. To run from the man who abused him, who was then abusing his sister. Trauma relating to a desire to escape produces Movers, but for Brian it wasn't the main trauma. His fear of that man, of feeling so weak despite building himself up so he could never be scared again, was more present than the exact want to run, especially due to him wanting to save his sister.
Because of that want to run still being a present part of his trigger event it could be played upon by Echidna's reinterpretations, resulting in the Warper clone.
It isn't that big of a difference, I know, but this distinction allows for a wider room a creativity when it comes to fanmade Echidna clones as a lot of Capes have other elements of trauma present in their triggers that could result in intriguing glimpses of what kind of powers they could have had.
