Lion El'Jonson

At the start of your Command phase, select two Primarch of the First Legion abilities. Until the start of your next Command phase, this model has those abilities.

Each time an attack is allocated to this model, if the Strength characteristic of that attack is greater than the Toughness characteristic of this model, subtract 1 from the Wound roll.

While this model is within 3" of one or more friendly Adeptus Astartes Infantry units, this model has the Lone Operative ability.

Each time this unit makes an ingress move (20.04), if every model in this unit has this ability, it can be set up anywhere on the battlefield that is more than 8" horizontally from all enemy units, even if that is within your opponent’s deployment zone.

While every model in a unit has this ability, that unit is a Fights First unit.  See the Resolve Fights First Combats step in the Fight phase (12.04).

If your Army Faction is Adeptus Astartes, at the start of your Command phase, select one unit from your opponent’s army. Until the start of your next Command phase, that enemy unit is your Oath of Moment target. Each time a model with this ability makes an attack that targets your Oath of Moment target: ■ You can reroll the Hit roll ■ If you are using a Codex: Space Marines Detachment and your army does not include one or more units with the Blood Angels, Dark Angels, Deathwatch or Space Wolves keywords, add 1 to the Wound roll as well.

[PISTOL] and [CLOSE-QUARTERS] are identical for all rules purposes. 

Units containing one or more models with a [CLOSE-QUARTERS] weapon can shoot using close-quarters shooting (10.06). When using another shooting type, for each model in that unit (excluding MONSTER/VEHICLE models), you can only select one of the following to make attacks with:  - One or more of its [CLOSE-QUARTERS] weapons.  - One or more of its other ranged weapons.

Each time an attack made with a [LETHAL HITS] weapon results in a critical hit, you can choose for that attack to automatically wound the target.  Designer’s Note:* Choosing to automatically wound the target means that no wound roll is made for that attack. You may decide against this, as it means that attack cannot result in a critical wound* and so cannot trigger other abilities such as [DEVASTATING WOUNDS].

This ability always takes the form [SUSTAINED HITS X]. Each time an attack made with a [SUSTAINED HITS] weapon results in a critical hit, that attack results in a number of additional hits on the target as denoted by X. Example: An attack made with a *[SUSTAINED HITS 2] weapon results in a critical hit. That attack therefore hits the target three times (once from the critical hit, and twice more from the [SUSTAINED HITS 2] ability).