If your Army Faction is DEATH GUARD, while an enemy unit is within Contagion Range of one or more Death Guard units from your army, it is Afflicted.
CONTAGION RANGE 1st Battle Round: Contagion Range = 3" 2nd Battle Round: Contagion Range = 6" 3rd Battle Round Onwards: Contagion Range = 9"
AFFLICTED
During the Declare Battle Formations step, select one of the Plagues below. Until the end of the battle, while an enemy unit is Afflicted, subtract 1 from the Toughness characteristic of models in that unit, and that unit has the effect of your chosen Plague.
Skullsquirm Blight Each time a model in this unit makes an attack, subtract 1 from the Hit roll.
Rattlejoint Ague Worsen the Save characteristic of models in this unit by 1.
Scabrous Soulrot Worsen the Move, Leadership and Objective Control characteristics of models in this unit by 1 (this rule can only worsen a model's Objective Control characteristic to a minimum of 1).
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