I have been farming ergo sum since the final shape, I’ve gotten every possible roll of ergo sum except for a void wave frame with unplanned reprieve. What makes the farming difficult is the fact that I keep getting rewarded roles that I’ve already collected several times but can’t get the one I want. Also I don’t have any physical data but I’m 100% sure that after over 300 overthrow completions arc and solar ergo sums spawn the most and void ones done the least. Out of 10 overthrow completions, I can expect 1 or 2 ergo sums to be void. which makes it difficult to farm the role I want. I really hope someone at bungie see’s this and updates the pale heart loot so that I can finally end my suffering. I’m sure it’s the least of your worries with it being an old activity and all but it would really bring me peace lol