I did mention the strategy
in that thread though admittedly at that point I didn't convert mythical fragments, which I started doing only after the supposed rework. Plus, people may not have been looking for strategies in the elephant thread, my apologies for not sharing here sooner. I also didn't open any of the heroic or normal rare souls, I focused only on event souls, and those that provide fragments. Hope this helps for future events, that is of course, if they don't adjust the pit and it's rewards further.