Finished floor 9 with Ryune/Meri after like almost 10 attempts. Not my brightest days. Finished floor 10 with Anubis/Diablos, my setup was RYomi, Fenrir/Satsuki, RHaku, Satsuki. Floor 10 was more manageable for some reason. Took a couple of turns to beat Athena but she didn't really do much. Fenrir was pretty cool, probably did the most damage due to doubleTPA + God killer. Didn't realize the dungeon also gave you a +297 athena, that's nice of them. First time completing these gift dungeons fully, feels pretty gud.