Hey, I just asked the team about this again, and again it’s still set to 20% and it’s still working correctly.
We’ve done a lot of testing and made a lot of notes about our RNG and statistics around the forum in the past, I’ll link you to a couple of those resources now, some of them may feel irrelevant because they use different game features as context but it all applies the same way to Vorpal:
This fantastic post by Gold Phoenix which explains just SOME of the testing on our RNG that we’ve done:
Basically we’ve tested all sorts of probability based things in the game tens of thousands of times and we haven’t found an issue with our probability based features EXCEPT in any circumstance where the probability was not set correctly in the settings - I’ve repeatedly asked different team members to check the probability set for Vorpal and every time the answer has come back to 20% is set AND is working as intended.