Arcane Crystal Casing

This is one of the components for the Auctioneer that can be constructed in your trading post. Once you get a [building=144], you will find a broken [npc=87205] on the floor. To fix it, you need to complete the quest [quest=36948] which requires 5 modules. Each module is made up of 3-4 components, which individually drop in specific places. Note that all modules and individual components can be traded, vendored or auctioned.

[item=118375] - Requires [item=118344], [item=118345], [item=118346], [item=118347]. These drop in garrison invasions and in raids. [item=118376] - Requires [item=118197], [item=118331], [item=118332]. These drop in dungeons. [item=118377] - Requires [item=118333], [item=118334], [item=118335]. These drop in Ashran. [item=118378] - Requires [item=118336], [item=118337], [item=118338], [item=118339]. These drop in Shadowmoon Valley, Talador or Nagrand. [item=118379] - Requires [item=118340], [item=118341], [item=118342], [item=118343]. These drop in Frostfire Ridge, Gorgrond, or Spires of Arak.

The universal Language Module is no longer required for this.

Does this drop on LFR level?

They probably do, as most such things drop in LFR.

I got 2 of these, one each from the [url=https://www.wowhead.com/item=122163/routed-invaders-crate-of-spoils]Routed Invader's Crate of Spoils[/url] and [url=https://www.wowhead.com/item=116980/invaders-forgotten-treasure]Invader's Forgotten Treasure[/url] that was a reward for [url=https://www.wowhead.com/quest=36831/shadow-council-invasion]Shadow Council Invasion![/url]

arcane - understood by few; mysterious or secret. crystal - a piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.