I do not trust the AI to make smart decisions.
I've watched my AI battle quite a bit. It makes bad decisions a lot, but that's what Rehabilitate is for. Ike will frequently get his ass beat down to 1 hp and then get fully healed on the next map. I actually thought it was pretty fun experimenting with different teams to see who would work well. But I mean, I have 120+ stamina potions, so I don't care if I waste stamina.
Threaten debuffs work well, since both your units and the enemies tend to end up standing around next to each other. So I load up on those, along with the Atk Ploy seal on Genny. Takumi's default kit works great for autobattle, even his special (as he ends up taking a lot of damage).
Autobattle more Tempest for orbs.
I can get to 21 orbs by tomorrow if I get another 15,000 points, putting me at 80k. This won't be hard at all. If nothing else my orb thirst is gonna keep me high in the rankings, for sure. I won't mind continuing to autobattle past 100k as I'm raking in the hero merit. I love seeing another 500-1000 feathers waiting for me every time I look at the castle screen.
I also need to clear the new chain challenge, I would've done it easily just now if I'd noticed the goddamn turn limit.
Just sucks as I had earmarked the upper levels of the tempest trial orbs for Nohrian Summer attempts. We've got a bunch of stuff incoming though, whatever those 'daily special maps' and 'turn limit maps' are.
$$$
You know where to get infinite orbs
$$$
I've spent enough for a while. If I don't get what I want, I'll live. A second cavalry team would be overall stronger and cheaper than the flier team I was going to make anyways. But if I hadn't found this 4* Titania I'd be in dire straits right now.