The thing has uses beyond violence, though; it's also instrumental in solving most of the game's puzzles. By hurling it into the right environmental hazard, you can temporarily charge the glaive with fire, electricity or ice, enabling you to do stuff like short-circuit door switches (which might take a little creative maneuvering with aftertouch) or burn down invasive plants. A charged-up glaive is also more entertaining to use on enemies; electricity has predictable results, fire will either immolate enemies or make them explode, and frozen enemies are ripe for shattering, which you can do one body part at a time. You can even freeze a monster in mid-leap, which will completely shatter it as it lands.
The elemental charges will come in especially useful during boss battles, such as the one we saw against the Colossus, a huge, ape-like creature who's been glimpsed during our earlier previews. You'll fight Colossus in an old cathedral, and he'll attack by hurling chunks of ancient columns your way. Keep your eyes peeled for big open flames, however, and you'll be able to imbue the glaive with fire, which will burn Colossus' metal skin right the hell off. And once he's weakened, you can deal some damage with a God of War-style button-press minigame that involves a quick stab to the head and a point-blank shotgun blast to the chin, but still doesn't kill it. The video below should give you a good idea of what to expect: