Noob vs Tactical Hologram: Impermanence Heron IV

my characters are trash and echoes are impossible to get good stats on (easy to get echoes though so no complaints there)
if anyone has some sealed tube farming strats that are good, other than the shops (bought out every shop) then I would like to know. Also tell me any secret shops too.

[@Ghostt_Playz]

Use food buff (gold/purple) to boost your crit rate u will get much more dps.