I'm on the final fight on Nightmare. I'm a level 20 Two-Handed Warrior and I'm probably going to use Sera, Blackwall and Cole. I am told that having a high SPR (Spirit Resistance) is key to this fight so with the help of a Superb Spirit Resistance belt my SPR is now at 80%. I have been told that Jar of Bees helps in the fight as well but I'm not too sure on that. What rune would work on Corypheus? I would have thought that Demon and Corruption would work quite well on him. Of course there are always the Tier 4 items and crafting materials but I have no idea where to get those from.