Fey Steed

A unit entirely with Ghost Step ignores Terrain Features and Open Terrain when moving.
The unit must follow the Unit Spacing rule at the end of its move.
A Health Pool with Ghost Step never fulfils the criteria for which models must take Dangerous Terrain Tests due to Terrain Features (but still needs to take Dangerous Terrain Tests from other sources than Terrain Features, such as when making a Flee Move through an enemy unit).
If the unit ends a move inside Impassable Terrain, backtrack the move to the unit’s last valid position, unless as part of a Flee Move, in which case the standard Flee Moves rules apply.

When a unit entirely with Supernal fails a Break Test, instead of being Broken and subsequently Shaken, it suffers a number of Health Point losses equal to the amount by which the combat was lost (with no saves of any kind allowed). These Health Point losses are first allocated towards Rank-and-File models, and once enough Health Points losses are suffered to remove all Rank-and-File models, any remaining Health Point losses are allocated by the owner towards Attachable Models, as evenly as possible.
Attachable Models with Supernal can only join units containing Supernal, and units containing Supernal can only be joined by Attachable Models with Supernal.

A unit containing Fearless automatically passes Panic Tests, cannot choose Flee! as a Charge Reaction (unless it is already Shaken, or the entire unit has Feigned Flight).
In addition it ignores the effects of Horror.

Units containing Solitary can never join other units, and can never be joined by other models.
Note: if a model has both Solitary and Attached, it cannot be Deployed and is therefore considered a casualty.

Rolls for Charge Range, Flee Distance and Pursue Distance by units entirely with Swiftstride gain Maximised.

Aegis is a Special Save, with a value indicated in brackets (X).
If X is given as a modifier and with a maximum value (e.g. +2), the model gains this as a modifier to all its Aegis Special Save rolls, which can never be increased to rolls better than 3+. If the model does not have Aegis, it instead gains Aegis (7 X+). For example, a model without Aegis that gains Aegis (+2) will gain Aegis (5+).
Note that Aegis Saves cannot be taken against attacks with Divine Attacks.

A model part with Stomp Attack can make a Special Attack which is resolved at Agility Step 0, can only be allocated towards a Health Pool of Height 0–1, and inflicts X hits, using the model part’s Strength, Armour Penetration and Attack Attributes, but not Weapons. If more than one model part of a combined model has Stomp Attack, only a single model part (chosen by the model’s owner) can perform its Stomp Attack in each Round of Combat.

This Attack Attribute does not confer any direct effects, but instead interacts with other rules, such as Aegis (X, against Magical Attacks).

During Combat Choices a model part can only choose Innate Weapons if it has no other options.
All model parts with Beast, Construct, or Mount come equipped with Innate Weapons as their default equipment and cannot lose them.