Actions

Emperor’s Fusillade. A battle sister can make three attacks and throw a grenade if available. She also uses Emperor's Command or Ecclesial Command.   Ave Deus Imperator (Mastercrafted Chainsword). Melee Weapon Attack: 1d20+10 to hit, reach 5 ft., one target. Hit: 15 ( 3d6+5 ) slashing damage. This weapons scores critical hits on a natural 18-20 and does 41 slashing damage.   "The Holy Trinity" (Mastercrafted Godwyn-De’Az Pattern Bolter, Custom). Ranged Weapon Attack: 1d20+9 to hit, range 60/150 ft., one target. Hit: The weapon hits three times and has the following effects:

• Melta. The targets AC is degraded by 1d4 points and the target becomes vulnerable until the end of their next turn to fire damage.
• Flamer. The weapon switches load outs automatically and does 11 ( 4d10 ) fire damage to the target and any adjacent targets (the attack is a 60 foot cone).
• Boltor. Finally, in boltor mode it does 16 ( 4d10+5 ) piercing damage and 10 (3d6) explosive (fire/piercing) damage to the target and all creatures within 5 feet of it. On a critical hit (19-20) the bolt pierces and continues on to another target after doing damage. The trajectory of the bolt is a direct line from the original target. The maximum range of this attack is 150 feet.

Grenadier (Recharge 6, +1). The sister of battle throws a grenade at a point up to 60 feet away. Each creature within 20 feet of an exploding grenade must make a DC 15 Dexterity saving throw, taking 5d6 damage of the type listed on a failed save, or half as much damage on a successful one. You can select from the below list or roll randomly. The grenade has a range of This ability recharges on a 6 but the roll has a cumulative +1 added each time this is checked until it recharges.

• Arc grenades do lighting damage.
• Gravity grenade do bludgeoning damage and the target is knocked prone for the next 1 minute on a failed saving throw. The target may make a DC 15 Strength ability check at the end of their turn to standup and end the prone condition.
• Inferno grenades do fire damage.

Emperor's Command. Each ally of the battle sister within 60 feet of her can’t be charmed or frightened until the end of her next turn.   Ecclesial Command. Each creature within 60 feet of the battle sister that isn’t a worshiper of the God Emperor must succeed on a DC 17 Charisma saving throw or become frightened of her for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. A creature that makes a successful saving throw is immune to this battle sister’s Ecclesial Command for 24 hours.  

Bonus Actions

The Emperor’s Wrath (1/day). As a bonus action once per day, A battle sister can cause her weapon attacks to psionically deal an extra 10 ( 3d6 ) psychic damage to a target on a hit . This benefit lasts until she successfully lands and attack.   Vow of Enmity. As a bonus action, a battle sister can utter a vow of enmity against a creature she can see within 10 feet of her, A battle sister gains advantage on attack rolls against the creature for 1 minute or until it drops to O hit points or is otherwise incapacitated or killed.   Healing (1/Day). The sisters of battle, or one creature she touches, regains 100 hit points.

Reactions

Relentless. A battle sister can move after making an opportunity attack and attack again. Any attack rolls made against her while using Relentless are made with disadvantage as she dodges past her foes.

Suggested Environments

Ancient battle stations or deep stasis pods lost to time.