I got about 100 orbs saved, I was hoping for a distant counter red unit but I wasn't expecting Ike, lol.
Still, keeping my hopes in check. I think I know more than anyone that even 300 orbs doesn't guarantee you jack shit in this game. I need more Hinatas, Lon'qus, Roys, and Selenas for inheritance fodder so I've been waiting a long time for an excuse to pull reds.
We don't know Ike's stats yet, but I'd imagine his atk stat is decent, that skill would make no sense otherwise. If I get one that isn't garbage IVs I'd probably switch Linde to spur atk and give Ike fortify defense or res. I'm already running an attack buffer with Sharena. He'd fit into my team quite nicely. He also seems easy to get up and running because his default kit is great.
Heavy Blade is obviously gonna be melee only because if I could put that on my -blade tome Linde I'd break the game in half. But it's interesting that it's A slot, getting a higher attack stat when everyone else is running Fury could be harder than it seems.
edit: maybe when they mentioned the reinforcement/defense maps they meant these new story missions. I'd imagine the Lunatic ones could be pretty tough.