Magical Weapons. The accelerator’s attacks are treated as if magical.

Paranoid and Fearful. It is very difficult to gain an accelerator’s trust. Creatures have disadvantage on attempts to convince it that they aren’t a threat. If successful, they only make it indifferent and wary for a few minutes, or perhaps an hour at most.

Modification (Recharges after a Short or Long Rest). About one in four accelerators have found a way to install a device within its shell that gives it an additional ability as a bonus action. Typically these devices are one of the following: a force field that adds +2 AC for one minute, a rocket pack that lets it move up to 500 feet, or a mental scrambler that gives all living creatures Huge construct, neutral within 60 feet disadvantage on all rolls their next round.

Multiattack. The accelerator makes three claw attacks and uses its control velocity ability.

Claw. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 19 (3d8 + 6) slashing damage.

Control Velocity. The accelerator can change the speed and direction of up to three objects and creatures within 10 feet, such as halting a moving creature or causing a still object to suddenly move rapidly in any direction. Typically it uses this to hurl a light object (up to 50 pounds), hurl a heavy object (up to 100 pounds), hurl a foe (up to 300 pounds), or stop a moving creature or object (up to 300 pounds).

Hurl Light Object. Ranged Weapon Attack: +7 to hit, range 150/600 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage.

Hurl Heavy Object. Ranged Weapon Attack: +7 to hit, range 30/60 ft., one target. Hit: 12 (2d8 + 3) bludgeoning damage.

Hurl Foe. The target must succeed on a DC 15 Strength or Dexterity saving throw (target’s choice) or be thrown up to 60 feet away, taking 12 (2d8 + 3) bludgeoning damage from impacting the ground or a solid obstacle.

Stop Movement. The target must succeed on a DC 15 Strength or Dexterity saving throw (target’s choice) or be grappled and restrained in its current space for one round.