I've been tinkering with the idea of using Censer Bearers in my lists (I never really have due to finecast model / no real place in the army) and I think I've figured out how to make good use of them.

Allegiance: Skaven Pestilens

Leaders
Verminlord Corruptor (220)
- General
- Trait: Master of Rot and Ruin
- Artefact: Blistrevous the Living Cyst
Plague Furnace (200)
- Artefact: Vexler's Shroud
Plague Furnace (200)
- Artefact: Liber Bubonicus

Battleline
20 x Plague Monks (140)
- Foetid Blades
- Pestilens Battleline
20 x Plague Monks (140)
- Foetid Blades
- Pestilens Battleline
20 x Plague Monks (140)
- Foetid Blades
- Pestilens Battleline
20 x Plague Monks (140)
- Foetid Blades
- Pestilens Battleline
10 x Plague Monks (70)
- Foetid Blades
- Pestilens Battleline
10 x Plague Monks (70)
- Foetid Blades
- Pestilens Battleline
10 x Plague Monks (70)
- Foetid Blades
- Pestilens Battleline
10 x Plague Monks (70)
- Foetid Blades
- Pestilens Battleline
5 x Plague Censer Bearers (60)
- Pestilens Battleline
5 x Plague Censer Bearers (60)
- Pestilens Battleline
5 x Plague Censer Bearers (60)
- Pestilens Battleline
5 x Plague Censer Bearers (60)
- Pestilens Battleline

Battalions
Congregation of Filth (140)
Plaguesmog Congregation (160)

Total: 2000 / 2000
Allies: 0 / 400
Wounds: 176

Nothing super fancy or complicated on display here. This army sacrifices a few bodies for being a 3 drop list, which is important as having the power to decide who moves first is super important when playing pestilens. The Verminlord is the general, an obvious choice as he is the only model in the battletome with a command ability.  He takes The Living Cist to enhance his mobility and combat ability slightly as the other artifacts aren't very useful, and his trait lets him pray like a priest. All around a solid if forgettable loudout. One of the furnaces takes Liber Bubonicus for extra prayer power., and this is the furnace part of the Congrgation of Filth, so he'll be deep in a nest of rats at all times. The most interesting choice here is the Furnace part of the Plaguesmog Congregation. He already recieves -1 to hit in the shooting phase beacuse of his batallion, and the Vexler's Shroud enhances that to -2. This should keep him nice and healthy at the front of my army.

Eight groups in total of plague monks mean eight groups using their Book of Woes to shoot a mortal wound at the enemy once per game. Sounds neglible right? Imagine on average about 6 of those mortal wounds hit everything in a 13 inch bubble. You just halved on average all their character's health and chunked a section of troops off each unit, guaranteeing a battleshock test all BEFORE they get hit by the monk avalanche, tasty.

The censer bearers are here for one reason, their enhanced Nocious Fumes from the batallion (instead of 4+ chance to deal 1 mortal wound to all enemies within 3" it's not a 2+ chance to deal d3 mortals, nice) and their ability to swing over the top of a line of plague monks. Coupled with the -1 chance to hit them with shooting they should do respecatably.

I will be testing the list next week and will follow up with a report of the battle and any changes I plan to make (for there will always be ways to improve a list).