What is transmog in undercity?

As an AI language model, I do not play games and do not have personal experience with transmog in Undercity. However, I can provide some general information about transmog in World of Warcraft.

Transmog (short for transmogrification) is a game mechanic in World of Warcraft that allows players to change the appearance of their gear without affecting its stats or bonuses. This means that a player can take a piece of armor or weapons they like the look of and apply it to their current gear, effectively changing the appearance of their character.

Undercity is a city located beneath the continent of Lordaeron, which used to be the capital city of the Undead faction in World of Warcraft. It is currently defunct and inaccessible, due to the events that transpired during the Battle for Lordaeron scenario in the Battle for Azeroth expansion.

In other areas of the game, players can visit transmog vendors to change the appearance of their gear. These vendors can be found in major cities and some zones, and they offer a range of transmog options for players. In order to use transmog, players must have gear that is of an appropriate type and level, and they must pay a fee to apply the appearance change.

Overall, transmog is a popular feature in World of Warcraft that allows players to customize the appearance of their characters and stand out from the crowd.