Undercity Rat
Even the rats of Lordaeron fell to the apothecaries' plague, chewing upon the tainted flesh of the dead.
Poor
No
Ground
Grooms face, sniffs air, and wanders around.
Vocalizations (on-click and while moving)
None
3 allowed
September 25, 2012
Although the Pet Journal lists Tirisfal as the location for this wild pet , the Undercity Rat can most commonly be found in Undercity.
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Even the rats of Lordaeron fell to the apothecaries' plague, chewing upon the tainted flesh of the dead.





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Vs.
Undead
Vs.
Humanoid
Flying
I can confirm that emparting mass maggot/rat genocide WILL make these guys spawn. It still took me about 2 hours of circling Undercity to find my rare, but killing all battle pets around worked to help ensure new Undercity Rats would spawn.
Side note, there are a few in the Royal Quarters by Sylvanas, but they seemed to always be impossible to engage due to the infamous "uneven ground" dreaded message. Better to just circle the Auctioneers and around the slime river.
I found mine after ca. 15 - 20 mins killing maggots and roaches. First and only I saw was a rare yippee!
Finally got my rare. Â I had to swap to horde and keep killing critters in undercity. Â Too a long time but I got my rare. Â Yippee
Just found a rare quality Undercity Rat in the War Quarter on my horde alt. Â It's taken me many laps around the City, you have to be patient in this pet taming lark, but I finally found one.
Read somewhere else that if you kill the critters and battle pets that you don't want that they will then respawn. And wow - it worked, but after a 1/2 hour of this I still have not found a rare...and now it's jsut giving me maggots, LOL, so I think the game is onto me.
just got my blue...woot woot...after trying several times i was unable to find a way to trigger a pet battle in the royal quarter...so i killed the undercity rats that spawned in there and once other pets spawns i went looking for undercity rats in other areas and found two....
Found two of these in Sylvanas' throne room... but the ground was too uneven for pet battles... so frustrating!
If you are having trouble finding one of these, try killing all the Roaches and Maggots you come across.Â
Learn this the hard way (dying like 6 times) also getting the achievement for catching something in Undercity and this whole time I had a lvl 85 horde toon I got from SoP that I leveled up.
MUCH, MUCH easier if you have a horde toon already or even create one and catch what you need and then you can delete your level 1. The rats are few and far between so you need to look ever where, got lucky and got a rare on the first rat I seen!
I spent a couple of hours trying to get this pet on my Ally Hunter, before I realized I could just switch (or create) a Horde toon to catch it, and it will add to the Pet Journal. Much, much easier! (tested and confirmed)
I just created a undead horde char................................................. walked right in but no rats to be seen!
Was tricky getting this as an ally. I got my 85 mage and blinked into the elevator seconds before it closed and ran around the halls. I got to the one by the AH guy and died ontop of it. Ran back as a ghost and did not rez until I was within distance of the pet and next to the wall making sure I knew where the pet was. QUICKLY clicked on the pet to battle and was lucky enough it was a rare! YAY. Teleported out 1/2 second before a guard would have killed me again. Mission accomplished.