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I keep coming back to this every couple years. I'm trying to crack the code for Hide in Shadows and Move Silently. I'm close, but not exactly right. here's what I have so far for Hide in Shadows. [[5+@{selected|level}*5+[[floor((@{selected|level}-1)/2)*(floor(@{selected|level}**0.5))]]]] I suspect this is much more simple than I think. I suppose I could graph it and then work backwards... Asking smart people for help seems like a much better option. I'm using the AD&D 2nd Edition Simple Sheet