Which 3 artifacts you never use in Idle?

only 3?
I never use:
army camp discount
damage territory
discount army camp
discount hospital
discount mine
efficient crafters
efficient smelters
field hospital
fog buster
market raid
money cache
resource cache

Yeah, the cache artifacts don't help much unless I need to upgrade.

I use cache upgrades situationally (when I go on a burst of taking territories).

I use crafting upgrades occasionally (I typically use artifacts to get more armies, but there are times when I need to finish a recipe, or if I want to get the all tech achievement)

I use the discount upgrades situationally

I use the potency upgrades most of the time (I'm still not sure whether Draft Boost is situational or continual. It's listed in a lot of the guides as continual, but I use it as situational. Maybe I am wasting it)

I use selling upgrades situationally

For active artifacts, I only use a handful: inspire mercs, market raid, triple strike, quadruple strike, supercharge army camp, time warp (some of those in battles more than in idle levels).

I'd love to hear how people make use of any of the artifacts that I don't use.