Cleared the Julius GHB on all difficulties, my Infernal team was Camus, Jeorge, ATiki and PAzura. Initially had difficulties with the map on Infernal, but figured out the trick behind reinforcements. They will not trigger until you enter enemy range. So you can simply do nothing on Turn 1, and have the enemies come to you. Half the starting army can be eliminated pretty quickly too. I believe that the rest of the reinforcements are location based as well. Not to mention, half the map exists as free space.
Overall, not that hard but I wouldn't quite call it a complete pushover unless you have some amazing Res tank that shreds through the reinforcement Mages.
I tried pulling for Ishtar again the other day, and offbannered a +Atk -Spd Hinoka. Will keep this one for use, seeing as it works perfectly for a Brave Lance build. Not quite sure to do with my existing fake neutral one, seeing as my only candidates for Hone Fliers have either yet to be built (Michalis) or need a rare skill (Myrrh).
I also finished building my Ares over the weekend for the next arena season. Despite being -Atk, he still has strong offenses, especially with Bonfire constantly activating. Training him went by so quickly since the Bonfire + Vantage + Brazen combination just rips apart enemies, it's also pretty fun. The synergy he has with Vantage is also nice, seeing as it's one of his skills in FE4.
Yet they gave him a random seal skill that nobody will ever use.