So far a Lexi flatline with tech laser is a very close gap with Bloom, both prototype with 18% echo. which is fine i love both variants.
Then I realize an issue, which could widen that gap between a little more, The issue is when Lexi procs echo 1 to 1. what you hit is what ever you replicate. you hit a 1m + 150k (flatline) crit echo replicate 1.15m dmg. simple. 1.15m+1.15m
BUT it does NOT do the same with Bloom as far as i tested. when Bloom hits 1m dmg, it does a separate dmg 330k (general dmg, similar to pestilence) and when eco procs, it only replicates the 1m hit, it DOES not replicate the Bloom talent so it only do 1m + 1m echo + 330k bloom talent. the problem I think is because of how bloom does it damage, echo does not replicate it. Not sure if its consider a bug, but IMO it should have been calculated into echo as the tooltip says "it amplifies weapon dmg", it shouldn't have been a separate addition dmg similar to pestilence.