I still don't think kishi thought out tobiramas death properly, I mean come on.
- He has FTG (should be more than enough to solo 20 fodder)
- He apparently had Edo Tensei (yet still died)
- He could've just teleported back to Konoha (you can't tell me he wasn't smart enough to leave a mark there, like really?)
- He wasn't alone, he had Hiruzen, Danzo, Kagami and more with him. And Hiruzen was obviously like Kage level at the time.
- Tobiramas death came straight from Kishi's ass.