Which is the most underrated duo in Naruto?

 

Tobirama Senju and Minato Namikaze:

Despite these two elite ninjas only having a short period of teamwork display in the forth great ninja war, if these two were alive in the same era, or even brought back again in their edo states, the capabilities of these two ninjas is unimaginable.

I don't think people really comprehend, the potential that these two hold if they were to face against a prime enemy, or an entire battlefield.

Predominantly both ninjas are arguably one of the quickest and wittiest ninjas in the narutoverse, and equipped with their flying rajin techniques, battles would be over in a matter of seconds if these two were to step on to the battlefield. Minato is known for using kunais with tags to improve the efficiency of the flying rajin, allowing him to spam himself across different locations on a playing field, but just imagine Lord Second being added to this equation, as he is able to teleport to Minatos flying rajin tags, vice versa. There would literally be flickers of sparks all over the battlefield, due to Tobirama and Minato effortlessly telepporting all over the map with fatal strikes.

Not to mention both Ninjas are widely respected as well as feared. Infact Madara hailed Tobirama as the faster ninja of their era and admitted that if it wasn't for his nerfed edo state, Tobirama would've had the upper edge. Was also hailed as the greatest water user in the narutoverse. One of the smartest & strategic ninjas, killed Izuna who was equivalent to Madara during their time alive before EMS, and took a squad of 20 S Rank Ninjas (which scales anywhere from Zabuza to an Akatsuki Member) and Kinkaku and Ginkaku who wielded Sage of 6 paths weapons to kill him. Now imagine putting him alongside Minato, a ninja claimed to be the quickest of all, had the highest records as a child before boruto came along, practically solved the whole 3rd ninja world by himself, can spam flying rajin like no tomorrow and like Tobirama has extreme chakra reserves.

These two, due to their God tier speed would be able to win battles without using any type of elemental ninjutsu, I mean just striking alone with a flying rajin combination would slaughter an entire battlefield.

93% of ninjas in the narutoverse wouldn't even be able to tag these two, let alone fight them.