Super Strong Poison, Sharpened Weapons

“A milligram of this poison takes down, what? One hundred elephants?” He asks, inspecting the substance closely. Mary nods. “And how much is on your weapons?” He inquires.
“A kilogram.” She answers bluntly.
“And your weapons have all been sharpened?” He questions. “Because I don’t see how else you’re going to harm them.” Mary nods again.
“They have. Even steel armor shouldn’t be safe.” She informs him.

Chapter 27, The Sting of Death