They use an infostamp
They could also be disabled with electric charges, although this weakness seems to have been eliminated later; one was used to siphon electricity from power sources instead. They could also be disabled with a sonic pulse, using an amplifier.
reedpipes from percy jackson and the olympians!
Jacks weapon is so important for Ralph will take the weapon in attempt to use it against Jack.
cheese
He doesn't necessarily have a weapon, but his reed pipes are... magical; they create natural things that can kill/injure you.
Samuel L Jackson
The most affective weapon is brushing and taking care of your teeth.
His weapon was a crowd full of proud blacks fighting for their rights
I note you say "their" child and not "your" child. If the child is not yours how can it be used as an emotional weapon against you , it is not related to you.
Locomotion & as a weapon against predators.
fasting
Propaganda against communism.