Passive skills list that improves research drop amount.

[pronoob]

While I am trying optimization for greed grinding, other than 'research drop amount', I found that 'habit efficiency', 'luck', 'all status' are boosting research drop amount.
My strategy is to fill out the party with the members who have those skills, in order of significance by number. (+Ruby items if necessary)
Are there any better suggestion?

[Fuzzy]

Can you share what you found with these stats?
Are you sure its not a side effect of the same party members having the Luck stat?

[Synthar]

im sure that luck is the only thing of the stuff you listed that increases research drop amount
that being the case, a good research famrming party should consists of some research drop chance, sludge slime and the higest luck units you have

[JayXan]

When I research farm personally, after building research drop ammount/chance party (There are a ton of units with research drop chance / ammount depending on the stage you are at in the game) (Unit passive luck is enough, no need to focus on luck boosting units) I just farm area 1 or 2 of an area where I can 1 shot enemies with sharp spike and other fast skills and leave it run over night.