The atomic bomb!
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.
the most powerful weapon is the lost katana it is +110
the most powerful weapon is the supernova lvl 99. that is the mega version of the harbinger
The weapon of the King of the Gods, Zeus, had to be the most powerful. Otherwise, he would be overthrown by the other gods. Thus, it was his thunderbolt that was the most frightening weapon.
a nuke
canyon
They are like battering rams and they are used to make people surrender.
Towns would surrender to him without a fight
the cannons
A thermonuclear warhead
power and the government