Iron Man isn’t exactly anything to write home about. If he’s not a favorite of yours, you’d be better off waiting. The new Sharon and Luna updates could potentially shift the meta or make IM less relevant. If I had to choose between IM, Maw and cull unis, I’d go with Maw as a leader / support. The only exception is if you need the IM uni for someone’s uniform bonus (like Strange option 5). But even then, I’d personally go with Maw or wait for Sharon and Luna updates to see what’s what.