Genji: Ryūjin no ken wo kūrae
Hanzo: Ryuu ga waga teki wo kurau
both are related to dragons. (note, translating jap to eng is no where near accurate)
Genji English: Take this! Sword of the Dragon God
Hanzo English: Dragon, consume my enemy
m(_ _)m don't even have overwatch and already studying way too much into it.