I will test the trait stone RNG for you

We have aggregate data for several users on the relative drop rates of stones in non-explore mode here:

In addition, I recorded my arcane drops from Explore for over 1000 battles and posted my data here:

The numbers for arcanes seem to track, so its a fair bet everything else is pretty close and can be calculated for Explores.

Feel free to do your own tests, but it takes a pretty large sample size to close in on more accurate results.

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