Mark of Chaos Undivided only. If this spell is cast with a casting result of 7 or more, the target enemy unit suffers a -1 modifier to its Movement characteristic (to a minimum of 1). If this spell is cast with a casting result of 9 or more, the target enemy unit suffers a -2 modifier to its Movement characteristic (to a minimum of 1). This spell lasts until your next Start of Turn sub-phase.

Mark of Tzeentch only. The target enemy unit suffers D6+3 Strength 4 hits, each with an AP of -2 and with the Flaming Attacks special rule.

Mark of Nurgle only. Remains in Play. Whilst this spell is in play, the caster and any unit they have joined gain a +1 modifier to their Toughness characteristic (to a maximum of 7).

Mark of Slaanesh only. Until the end of the Combat phase, the target enemy unit becomes subject to the Strike Last special rule.