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
A thermonuclear warhead
the cannons
power and the government
make weapons as powerful as nukes
The weapon that John Smith told Samuel was more powerful than a sword was a bullet.