Magic Catchers

It would take a very long time to kill the golems one by one. But I think I have found a way to destroy them all at once... or rather, disable them. Apparently, the Mage who created the golems and giants equipped them with devices of some kind that capture magic. Using these devices, the golems draw the tiniest scraps of energy from everywhere: the air, sand, stones... If we create a powerful enough energy discharge, these devices will simply burn out, and the golems will gradually shut down. Please obtain the giants' magic catchers, and I will try to determine what kind of discharge we need and how powerful it must be.