Terradon

A unit containing one or more Fear-causing model gains +1 to their Combat Resolution bonus. If the Unit Strength of all Fear-causing models is double or more, the Combat Resolution bonus is increased to +2. Note that the bonus from Fear is otherwise not cumulative for having multiple units with the Fear special rule involved in the same combat.

If the majority of the models in a unit cause Fear, they also gain Immunity (Fear), and thus the Combat Resolution bonus is ignored for that unit.

The number of Impact Hits is shown in brackets after the rule. If a creature is granted two sets of Impact Hits, use the highest set, rather than a total, before rolling. If a unit contains more than one model that inflicts a random amount of Impact Hits, always roll separately for each model.

Impact Hits are only made on the turn the model makes a successful charge into close combat, and only against the unit the model has charged. Impact Hits are resolved at the very beginning of the close combat, before challenges are issued and attacks of any other kind are made. They hit a unit in base contact and are randomised as Automatic Hits. If the model is in base contact with more than one unit, randomise the Impact Hits between them as evenly as possible. If the model with Impact Hits is not in base contact with the enemy, no Impact Hits are inflicted.

Impact Hits roll to wound using the S of the model making the Impact Hits. Any armour saves taken are done using the close combat value of the armour, and Parry saves may not be taken. Any Wounds caused by Impact Hits are counted towards combat resolution. 

Unless specified, any rules that apply to the model’s normal attacks do not apply to its Impact Hits.

Once per game, during the Remaining Moves sub-phase, the unit may drop rocks unless they are fleeing or have declared a charge that turn. All models in a unit must drop rocks at the same time.

To drop rocks, select one unengaged enemy unit that the Terradons moved over in that turn. That target immediately suffers D3 S 4 hits for each Terradon in the unit, distributed as for shooting attacks.

Flying units consisting of more than one model have Skirmishers.

Moving Flyers
Flight is represented by a swoop equal to the number in the brackets instead of using the model's normal M value. Note that any equipment or rules that affect the model's regular M will also affect its Fly move, unless specified. The flyer starts off on the ground, takes off, flies to where it wishes to go, and then lands. Flyers, therefore, begin and end their movement on the ground.

Units made up entirely of models that can fly can move or charge normally on the ground, using their M value, or instead choose to fly. A unit that flies can move over other units and terrain as it does so, treating the entire move as taking place over open ground. It may not finish the move on top of another unit or in impassable terrain. Models that Fly can make a flying charge over intervening units and terrain as long as they can draw Line of Sight to their target as normal. A unit that makes a flying charge does so using its Fly move as its M characteristic, using Swiftstride.

Flying March
A unit that is flying can march as normal, doubling its
flying move.

Flee and Pursue
Flyers always move on the ground when attempting to
flee or pursue.

Models with Strider will normally have a subset of Strider that is mentioned in the brackets. The rule only applies in terrain of the specified type. Models with Strider treat that piece of terrain as open ground for the purposes of Movement, meaning they ignore any M penalties or Dangerous Terrain tests otherwise caused by it. Note that they still follow the rules for that terrain type in terms of combat.