Deiza Plaguehorn

Deiza Plaguehorn is an Undead-themed Master Pet Trainer that resides in the Eastern Plaguelands at coordinates [67.0, 52.4]. She is the second battle pet tamer in terms of progression for Battle Pet Tamers: Eastern Kingdoms (A)/Battle Pet Tamers: Eastern Kingdoms (H) and has three level 14 pets.

[npc=66487] is the first pet you will battle and has the following abilities: Acidic Goo, Chomp, and Leap.
[npc=66486] is the second pet you will battle and has the following abilities: Brittle Webbing, Sticky Web, and Strike.
[npc=66485] is the third pet you will battle and has the following abilities: Death and Decay, Diseased Bite, and Siphon Life.

The best offensive pet species against this team would be: Mechanical - strong against [npc=66487] and [npc=66486]
The best defensive pet species against this team would be: Flying - strong against [npc=66486]
Avoid using: Humanoid - weak against [npc=66485]; Critter - weak against [npc=66486]; and Undead - weak against [npc=66487]

As of 12.0.1, she's now here in EPL:

/way 66.55 56.99

I find it ironic that a Draenei Death Knight is telling me "Good health, long life".