Bane of Enemies( Epic Level Handbook, p. 51)
Your attacks deal great damage to your favored enemies.
Survival 24 ranks, five or more favored enemies,
Death of Enemies (ELH) ,
Any weapon the character wields against one of his or her favored enemies is treated as a bane weapon for that creature type (thus, its enhancement bonus is increased by +2 and it deals +2d6 points of damage). This ability doesn’t stack with similar abilities.
Survival listed insted of Wilderness lore. The version that was listed appears to have been copied straight out of a "print" copy of the Epic Level Handbook meaning it was the old 3.0 version. This version was not updated via errata OR the "3.5 accessory update" created for the ELH. The ONLY place this correction is listed is in the official SRD .rtf documents available through WotC and, less officially, on the d20srd.org website. For reference, the official, corrected version is listed here: http://www.wizards.com/default.asp?x=d20/article/srd35