Horror marks can be applied to both units and commanders by various effects, and will cause horrors to have a random chance to attack the unit in an assassination setting at the beginning of every turn. In addition, horror marked targets are preferred targets for any horrors spawned in normal battles. A unit that is horror marked will have the icon displayed alongside its other abilities.
Horror marks stack: that is to say that a unit which is marked multiple times has a more severe mark, though besides the frequency and strength of horror attacks, there is no way to tell how badly horror marked any given unit is. There is no way to remove a horror mark entirely, though for units that may return once slain, horror marks are reduced every turn spent dead. This is always 10% of their mark count per turn, rounding down. The mark count will be reduced by a minimum of 1 mark per turn with the only exception that it cannot reduce a unit's marks to 0.
When hosting a turn, there are three different destinctions used by the game when deciding to send a horror assassination to a marked commander. First, the game considers "normal" horror assassinations. After this, there are then additional separate chances to send pretenders and to creatures in the hall of fame.to marked
The attack rate of horrors is dependent on several factors, and is calculated by the game as follows2):
(Attractiveness - Drain + Misfortune) * Global [[Horror]] Level
The global Horror level varies as follows:
|Game State||Horror Level|
|Cataclysm fully active, regardless of Astral Corruption||20|
|Astral Corruption is active||10|
|2 turns before Cataclysm||5|
|1 turn before Cataclysm||10|
The resulting lesser horror attack is subject to the usual upgrading process and multiplicity described in the Horror article.
Due to the multiplication, the effect of scales on the attack rate is largely negligible unless the global horror level increases dramatically.
In a normal game state with a global horror level of 1, horror marks are approximately 0.5% per mark per turn to produce a horror attack, which is then doubled if the commander has a cursed item, to a maximum of 50% at 100+ marks. This is consistent with experimental data 3)
Marked Pretenders and Disciples have a 50% chance to be considered for an attack by the Eater of Gods. As with other attacks related to horror marks, Mindless commanders are unaffected.
The probability of attack is calculated very similarly to the Eater of Gods, with two notable differences:
Combined, the Hunter of Heroes is therefore 2/5 as likely to attack an eligible commander as the Eater of Gods.