Running eaisly out of Cloudy Essence.

[Grief Factory Employee]

The only thing that seems scarce. You gotta loot all the useless monsters to get maybe 3-5. You have 4-5 bad runs when you die and you lose a lot of pots and I think it's kind of hard to farm this material.
At the beginning it wasn't because I had a lot from quests.

[Allaros]

Just play the game and soon you will have more then you ever need. I have 5 full stacks because I never use them, I just bring those potions I find in the run and as you can see it's overflowing, even if I die few times in the row, sheet happens what can you do.
https://steamcommunity.com/profiles/76561198147745366/screenshot/2471998752285312132/

[Brihar]

No its factually not hard to farm. Just do default gear casual run and you are fine.