The Katana or Samurai Sword.
His weapon is the Samurai Edge 2
It is their traditional weapon.
Mainly a katana.
a sword
sword
kasurigama
The labor union's most powerful weapon is the strike.
If by "bomb" you mean a conventional explosive weapon, then the nuclear weapon is more powerful.
Japanese Samurai
conflicts between powerful clans
They began to be really powerful in the late Heian Period.