Offlane. Contest the rune, Impale is a huge AOE stun that hits straight in front of you but has a short delay. Impale enemies in lane if it can get you a deny on a ranged creep. Mind Flare deals damage based on how much damage Nyx dealt to the target recently, so always use it last after hitting a hero with everything else. Spiked Carapace is an insane ability that makes you completely immune to damage for 2 seconds and stuns anything that hits you, use it to survive tense situations or against enemies that think they can trade blows with you. Vendetta makes you fast and invisible, use it to scout for fragile heroes and then auto attack them before impaling and murdering them. Remember to use dagon's active before mind flare.