So, with gem stockpile and two cash draws for Iris chance-up I got: Svarog, Titania, Thunderbird, Fafnir, Echidna and Azatoth. As far as I understand at least the himes are top tier, though I don't have anything else on Fire and only got Odin on Earth... But yes, I sign-up to complaints, that the chance-up is a bait (at least compared to other Gacha games, where chance-up often means ~50% to get the selected unit...)