I killed Elvarg when I was lvl. 49, you dont need rune at all, as long as you have good food with you, anti-dragon sheild, and lotsa luck( :D ) it's easy to kill her, i killed her with full addy(well, it's not really full addy because of the anti-dragon sheild, but oh well :D ), less then 40 defense, and rune skimmy, plus only like, 6 lobbies, lol.