Nurgle's Rot

Source: Codex: Chaos Space Marines (1999), p. 28

After normal attacks in close combat, roll a D6 for each living model (friend or foe!) in base contact with the bearer of this gift. On a roll of 6 they contract Nurgle's Rot and suffer a single wound, with no armour save allowed. Invulnerable saves may be taken as normal. Note that this only applies to living foes, not to other Daemons, vehicles, Talos, Avatars or Wraithguard.