Mutalith Vortex Beast

Models that cause Terror also cause Fear. In addition,
the following rules apply. Fear-causing models or
models with Immunity (Fear) treat Terror-causing
monsters as causing Fear, rather than Terror – this is an
exception to the rule that makes Fear-causing creatures
immune to Fear. Terror-causing models have the
Immunity (Fear/Terror) special rule.

Run for Your Lives!
If a Terror-causing creature declares a charge, the target unit must immediately take a Panic test. If the test is passed, all is well and the unit can declare charge reactions normally. If the test is failed, the unit must make a Flee! charge reaction. Note that, if the target unit is not allowed to take any charge reaction (if, for example, the Terror-causing unit charged as a result of a pursuit or a random move), then the target does not take this test.

If a unit wishes to declare a charge against an enemy that causes Terror, it must take a Psychology test to overcome its terror first. If the test is failed, it may not declare the charge against the Terror-causing unit, but may choose to declare a charge against another unit following the rules for Redirecting a Charge. If the Psychology test is passed, the unit may declare the charge as normal.

When charging, units entirely made of models with Swiftstride and M 7 or higher roll 3D6, discard the lowest result, and add the result to their M value. When fleeing or pursuing, they roll 3D6, rather than 2D6.

When charging, units entirely made of models with Swiftstride and M 6 or lower roll 2D6, and add the result to their M value. Whenfleeing or pursuing, they roll 3D6, and discard the lowest result.

Swiftstride has no effect on models using a M value lower than 4.

Swiftstride M6 or lower
Charging: M + 2D6
Failed Charge: 2D6
Fleeing/Pursuing: 3D6 (discard the lowest)

Swiftstride M7 or more
Charging: M + 3D6 (discard the lowest)
Failed Charge: 3D6 (discard the lowest)
Fleeing/Pursuing: 3D6

The model can make a Stomp in addition to its other close combat attacks. A Stomp has Always Strikes Last, and inflicts D6 (or D3 against lone Infantry models and skirmishers) automatic hits, at the model's S, on one enemy Infantry, War Beasts or Swarm unit in base contact with the model.

The hide of some creatures forms a kind of natural armour that grants the model an armour save. The resulting armour save will be stated in brackets. Natural Armour can be combined with other armour as normal.

Models with Random Attacks do not have a normal number for their A characteristic, but rather a dice roll. Each time a model with this rule comes to strike blows, roll the indicated dice, adding any modifiers shown, to determine the number of attacks that the model will make, then roll to hit as normal. If a unit contains more than one model with this rule, always roll separately for each model.

A model with Regeneration gains a Ward Save (indicated by the number in the brackets). This is cumulative with other sources of Regeneration. Regeneration may not be used against Flaming Attacks, successful Killing Blows (including Heroic Killing Blow) or wounds caused due the unit being Unstable.