Need more active players to go on secret dungeon runs... Our goal is to farm on ruto hell mode since the materials for dual stat gems/SD armor set is very high there. What we usually do is go on henrir runs until the fever bar is at 100% then head to secret dungeon hell mode hoping that ruto would appear. One run usually yields 10-30+ dual gem materials and 1-10 SD armor materials.
Yeah, I have terrible luck... On this run the rest of my party got 20+ dual gem mats each. (purple one is usually priced at 300-500k on HK market)