Daemons are attracted to a battle through unholy prayers and the miasma of desolation and war. Greater Daemons, and units of Daemons, Daemonic Beasts and Daemonic Cavalry are kept in reserve at the start of the game, even if the mission does not normally use the Reserves scenario special rule – so do not set up Daemons, apart from Daemonic Princes, with the rest of the army.
Starting with the second turn roll a D6 for each Daemonic unit, at the start of the assault phase, in the Chaos player's turn, to see if it becomes available. If you roll equal to or greater than the number shown below the unit is available and must be summoned. Important: Note that Greater Daemons cannot be summoned like this and can only enter play by possessing a model (see Daemonic Possession).
| Turn | 2 | 3 | 4+ |
|---|---|---|---|
| D6 | 4+ | 3+ | 2+ |
Different Daemons are more likely to appear if certain acts have been carried out on the battlefield during the turn that they are being summoned. Look up the types of Daemon below to see what modifiers apply:
Khorne: Add +1 to the dice roll if any Chaos troops are within 6" of the enemy at the start of the assault phase.
Nurgle: Add +1 to the dice roll if any enemy models were killed or there were any enemy vehicles destroyed in the shooting phase.
Slaanesh: Add +1 to the dice roll if any enemy units failed a Morale check this turn.
Tzeentch: Add +1 to the dice roll if any psychic powers were used this turn.
When they become available the Daemons are summoned and deployed on the battlefield.
To deploy a summoned Daemon pack, place the Ordnance Blast marker so that it touches at least one model in the Chaos Space Marine army. Then roll the Scatter dice. If you roll a 'Hit' then the template stays in place. If you roll an arrow it moves 2D6" in the direction indicated by the arrow on the dice. Once the template has been placed the Daemon pack may be deployed anywhere on top of the template. Summoned packs may make assault moves as normal on the turn that they appear.