Clan Rictus
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Money- it's one of the biggest motivators in the world. Clan Rictus is particularly loaded, as they are the toll-keepers for all tunnels, pathways and general roads for Crookback Mountain and the surrounding Dark Lands (what's worse, they charge double if anyone plans to leave, so watch yourself!). The presence of multiple Night Goblin tribes means that slaves are never a problem. All this and their location has made Rictus very rich.
Of course, big treasure holds attract all sorts of unwanted types... namely Clan Mors, who is annoyed by the presence of another overly wealthy clan. Mors constantly schemes to take Rictus' treasure (and vice versa... Clash of Clans, anyone?). Thankfully, the heavy supply of Stormvermin keeps their enemies in check, as does their natural grim and vicious nature.
Oddly enough, Rictus doesn't have its own clan rune (even the image featured here is just one that was adapted from another rune with a few jagged marks!). What could they be hiding?
Special Units
The Deathvermin- also known throughout the Under-Empire as the Black Death, these guys are the elite of Clan Rictus' formidable Stormvermin regiments (and, perhaps, the most proficient warriors in all Skavendom). They're utterly ruthless and have crushed their enemies in countless battles, much to the annoyance of the Clan's Warlord- Kratch Doomclaw. Indeed, the Deathvermin pose a significant threat to Lord Doomclaw's own powerbase and, despite throwing them into hopeless battles on numerous occasions, they have returned victorious every time.