Yugoloth Seeker

"Watch the sides!"

- Elizabeth "Pixie" Shearer, human artificer, shortly before having her neck broken

These frightening constructs were originally invented on the plane of Avernus. However, the secrets of their construction have been stolen by the yugoloths, and they are now available for hire for anyone who desperately wants someone strangled to death.

Yugoloth seekers can turn themselves invisible at will. They maintain this invisibilty by default, and only break it to receive maintenance or attack some hapless victim.

Yugoloths will also frequently hire out their own constructs if stealth or battlefield control is necessary for a job. Seekers are excellent at disabling individual targets or skirmishing from the air. However, against victims that don't need to breathe or are too large to grapple and suffocate, a specialized design may be employed.

Specialized Design. A specialized yugoloth seeker may have one or multiple of the following traits.

d8 Specialized Design 1 Close Encounters: If the seeker attacks a creature within 10 feet with its chest cannon, it may make another attack as a bonus action. 2 Resilience: The seeker is immune to critical hits except from adamantine weapons. 3 Lightning Reflexes: The seeker is proficient (+5) in Dexterity saving throws. Additionally, opportunity attacks against it have disadvantage. 4 Shock Absorbant Armor: The seeker has an Armor Class of 18 and is resistant to thunder damage. 5 Squadsight: The seeker projects a field within 20 feet of it. Ranged attacks against enemies of the seeker in that field do not sufffer penalties from attacking at long range. 6 Extra Conditioning: The seeker's Constitution score increases to 20 (+5) and its hit point maximum increases to 57 (6d8 + 30). 7 Damn Good Ground: The seeker has advantage on attack rolls against targets at a lower elevation than it. 8 Extended Tentacles: The seeker counts as a Large creature for the purposes of grappling.

Credit: XCOM: Enemy Within