Virulent Procession: the Clan Pestilens plague formation (AoS 4th Ed)

It lets chosen units make additional pile-in moves and grind out mortal wounds in combat (reviews describe mortal-wound output on a 2+ for selected units at the end of a turn). The effect is to keep enemies locked in and bleeding, turning cheap plague monks into a persistent damage engine. Confirm the precise wording and dice thresholds in the current book.

Players who like an infantry-swarm melee grind rather than shooting or monsters. If you enjoy tarpitting the enemy and winning through relentless mortal-wound attrition, this Pestilens formation is for you.

• Plague Monks - the core swarming melee unit, trading bodies for mortal wounds.
• Pestilens priests/heroes - support characters and Noxious Prayers to buff the horde and spread disease.
• Plague-themed war-machines and censer bearers - added mortal-wound output and reach where available.
• Clanrats - cheap screens and objective holders alongside the monk swarm.
• Manifestations - summoned plague/vortex effects to add board control.

Take it when your army is a Pestilens melee swarm designed to engage and grind. It shines on objective-dense missions where locking the enemy in combat and chipping mortal wounds wins attrition. It's weaker if you're trying to play a shooting or fast-monster game - pick the matching clan formation for those.