After reading the latest chapter (Tobirama killed Izuna) we can safely hype Tobirama's death a bit. Tobirama supposedly died by the hands of 20 elite shinobi but isn't that a bit strange?
Tobirama, in the prime of his life, defeated Izuna who was equally strong to MS Madara, losing to 20 elite shinobi.
This is my hype/crazy theory
Tobirama vs Ginkaku, Kinkaku, Kakuzu & 20 elite shinobi (A tad lower than Asuma's level)
Tobirama destroys 3 of Kakuzu's hearts, inflicts fatal wounds on the 2 brothers & kills all the 20 shinobi. Do you think Tobirama is capable of that?