"Swords. Shields. Axes. Hammers. Rifles. Fusion Rifles. Vex weapons... How to use them, how to fix them, how to make them sharper, stronger, superior. The ultimate weapon of choice, in the end, is Ontology. That is basically persuading something to not exist by any means, whether it's a bullet, a beam of molten metal at FTL speeds, magic, or a sharp stick."