Well.. Orochimaru has only used 33% versions of Edo before, which were Hashirama and Tobirama. He only summoned Tobirama, Minato, Hiruzen during the war, but he hasn't used them in battle yet. They did what they wanted to do, so this is just like saying Edo Itachi doesn't have Yata Mirror because he didn't use it as an Edo. Orochimaru didn't really make the 90% Edo do anything this time, he only restricted Tobirama's movements. They could probably resist his commands.
Cant Hashirama just hide in the earth(like yamato/zetsu) and create Gigantic Flowering Trees and unleash its pollen that would put his enemies to sleep? He could also use infinite darkness jutsu to blind them and they will be forced to use their tracking / sensing jutsu.