My total numbers with keys 750 keys Open mostly in stack 103-108 average 2-3 umbrite per stack - got about 17 umbrite total, use them also in stacks 1 umbrit = 1 GRC 6 umbrits = 3/3 GRC/Charm 4 umbrits = 2/2 GRC/Charm 6 umbrits = on the second roll pulled wand Still have 4 unused umbrite keys On the side note I so sick of keys - I can't even force do keys for my coercer (not I can use 2 chars for that but just can't take it anymore )