Krait Neoss lvl 18 in Magnus Stones for more chance ??
https://wiki.guildwars.com/wiki/Talk:Elemental_Sword ->
QuoteObserved drops for Elemental Sword:
N Krait Hypnoss in Magus Stones Chieftain Alex 22:12, 18 February 2013 (UTC)
But what req? Are they all req9 and above?