So I thought a lot about it, and here's what I'd change about the current, release version of Demiatmas:

- Perfecting a Critical Engagement, that is, not dying or gaining any Vul stacks, guarantees a Demiatma drop, this wouldn't have made gaining Relics at any easier at first, as everyone was still learning CEs, but it would inflict a pretty strict upper limit to how long it could take, and even discourage Tank immortality as a strategy, as being actually good at the game would be objectively more beneficial. I would also change the Closter Torches in Calamity Bound to no longer apply a Vul stack if not killed as currently it is possible to get hit with one by no fault of your own, and you don't want people to be able to grief something like that by deliberately avoiding the Torches.

- You would be able to trade Demiatmas for a resource, 3 or 5 of that resource (to be decided) would let you purchase any Demiatma of your choice, 5 sounds like a fair number in addition to the above change, but it can be argued.

- The resource above would then be additionally used to trade for Arcanite, 6 would equal an Arcanite, meaning 18 Demiatmas of any color equals a relic, again values can be argued, but the point is to encourage people to keep doing OC past the one-time step, which currently doesn't exist. Buying Arcanite for tomes would remain as the non-OC option.

I feel these changes would make everything agreeable, would repair one of my biggest issues with OC currently, would keep the RNG while inducting a player-controlled cap to the grind, and so on.