Rig

The Rig is incapacitated without its Pilot. When it is forced to make an Intelligence, Wisdom, or Charisma ability check or saving throw, its Pilot is considered to be the target of the effect instead.

Moreover, if the Pilot is concentrating on a spell when the Rig takes damage, the Pilot must make its Constitution saving throw to maintain concentration as if the Pilot had taken that damage.

When the Rig takes damage, it reduces the damage by its Constitution modifier (3). Acid and force damage bypass the effects of this feature.

The Rig's weapon attacks and spells deal maximum possible damage, in place of rolling, when used on non-magical objects and structures.

Melee Weapon Attack: +4 + PB to hit, reach ft., one target you can see. Hit: 2d6+4 bludgeoning damage.