Protoss Observer

Written below is a D&D 3.5 draft of Starcraft's protoss observer.
Similar drafts of other units can be found here: Starcraft d20

A spellcaster with the Hierarch's Favor feat, can summon “observers” using a summon monster II spell.

OBSERVER CR 2
Usually N Small Construct (Protoss, Psionitronic)
Init +6 (+2 Dex, +4 feat); Senses Darkvision 400 miles, Blindsight 120 ft., Superior Low-Light Vision, All-Around Cosmic Sensors, Perception Filters; Listen +26, Spot +32; Quick Reconnoiter
Languages understands Common and Khalani; cannot speak; Psionitronic Mind

AC 18, touch 13, flat-footed 16 (+1 Size, +2 Dex, +5 natural)
hp 20 (1d10+10+5); Psionitronic Shield; DR 1/adamantine
Immune blindness, deafness, petrification, polymorph, construct immunities
Resist acid 5, cold 30, electricity 10, fire 30, sonic 5
Weakness Combat Inability, Psionitronic Vulnerability
Fort +2, Ref +4, Will +2

Speed fly 120 ft. (perfect), swim 60 ft.; Run
Melee slam -2 (1d4+1)
Space 5 ft.; Reach 5 ft. (Long)
Base Atk +0; Grp -2
Special Actions utility functions

Abilities Str 15, Dex 15, Con —, Int 10, Wis 11, Cha 14
SA adamantine strike
SQ all-around cosmic sensors, buff, cloaking field, combat inability, construct traits, induction engines, perception filters, perception link, psionitronic collectors, psionitronic mind, psionitronic prowess, psionitronic shield, psionitronic vulnerability
Feats Alertness
Racial Feats Aerial Reflexes (RW 148), Blind-Fight, Clever Wrestling (Sto 92), Great Fortitude, Improved Initiative, Iron Will, Lightning Reflexes, Mobility, Quick Reconnoiter (CAd 112), Run
Skills Hide +10, Knowledge (any 11) +1, Listen +26, Move Silently +10, Search +28, Spot +32, Swim +10, Tumble +5

Utility Functions (Su) Once per round as free or immediate action, an observer may produce a correspond, know direction and location, mass missive or mindlink effect as if manifesting the power using a number of power points and an effective manifester level equal to 35 + its Hit Dice. Any save DC is Charisma-based. In addition, the range and duration of these effects are doubled.
Adamantine Strike (Ex) The natural weapons of observers overcome adamantine-based damage reduction.
All-Around Cosmic Sensors (Ex) An observer’s advanced sensor array allows it to look in any direction, and provides it with a +20 racial bonus on Listen, Spot and Search checks. An observer cannot be flanked. In addition, an observer suffers only one-tenth the normal penalty on Spot checks because of distance (-1 per 100 feet of distance, rather than -1 per 10 feet).
Buff (Ex) Observers gain an extra 5 hit points.
Cloaking Field (Ex) An observer's Cloaking Field is always active, rendering the observer itself invisible at all times, even when it attacks. This ability is inherent and not subject to the invisibility purge spell. Any creature under the effect of a Cloaking Field also gains the benefit of the Darkstalker (LoM 179) feat.
Combat Inability (Ex) Observers possess a low base attack bonus progression for their racial Hit Dice, and no primary natural weapons.
Induction Engines (Ex) Observers possess the reach and carrying capacity of a quadruped, and produce artificial gravity to provide thrust and lift, enabling them to fly, swim and otherwise maneuver. They gain a +4 racial bonus to Move Silently checks and may even fly in a vacuum without hindrance. Wind speeds and water currents affect observers as if they were two sizes larger than they actually are.
Perception Filters (Ex) An observer's instruments constantly provide it with all the benefits normally granted by the see invisibility spell and the steadfast perception power. (The enhancement bonus to Spot and Search checks are included in this stat block.)
Perception Link (Su) Creatures in a mindlink with an observer, gain all the benefits normally granted by the see invisibility spell and the steadfast perception power, but only when looking into areas that lie within 5 miles of the observer.
Psionitronic Collectors (Ex) When subjected to a magical or psionic effect that would normally recover its hit points, a Construct with the Psionitronic subtype, always gains an equal number of temporary hit points instead.
Psionitronic Mind (Ex) A Construct with the Psionitronic subtype always has an Intelligence score, and gains a number of skill points as if it possessed the Outsider type. It counts all skills as class skills, but may not use any skill untrained. Although it can learn and evolve, it must obey its creator(s) and has no form of advancement based on its own experience. While it remains immune to charms, compulsions, phantasms, patterns, morale effects and fear, it can be affected by any other mind-affecting ability or effect, but only when produced by itself, its creator(s) or another individual they permit.
Psionitronic Prowess (Ex) All Constructs with the Psionitronic subtype gain Blind-Fight, Great Fortitude, Improved Initiative, Iron Will, Lightning Reflexes and Run as racial bonus feats.
Psionitronic Shield (Ex) A Construct with the Psionitronic subtype, usually has a temporary hit point capacity equal to half its undamaged hit point total (rounded up). Each round at the start of its turn, it automatically gains or loses 1 temporary hit point as needed to reach this total. Temporary hit points it gains from any source, always stack and have an instantaneous duration, but are otherwise lost in the typical manner.
Psionitronic Vulnerability (Ex) A Construct with the Psionitronic subtype is not immune to critical hits and precision damage. There is still a 50% chance that any critical hit or any precision damage scored against it is negated so that the damage is instead rolled normally.
Skills Observers gain a +8 racial bonus to Swim checks. An observer can take a 10 on any Swim check, even when distracted or threatened. It may use the run action when flying or swimming, provided it does so in a straight line.


Observer Build Process
For each individual observer, use the stats of a typical 1st-Level Astral Construct (XPH 185) with the Buff ability. Then apply the following.

Type: The creature's type changes to Construct (Protoss, Psionitronic).
Senses: Remove any sensory special qualities from the base creature, then add Darkvision out to 400 miles, Superior Low-Light Vision, Blindsight out to 120 feet and All-Around Deep Sensors (see below).
Languages: Observers cannot speak verbally, but they know Common and Khalani. They also possess a Psionitronic Mind (see below).
hp: Observers gain damage reduction 1/adamantine, as well as a Psionitronic Shield (see below).
Resist: Remove any resistances from the base creature, then add resistance to acid 5, cold 30, electricity 10, fire 30 and sonic 5.
Immune: Immune to blindness, deafness, petrification and polymorph effects in addition to Construct traits.
Weaknesses: Remove any vulnerabilities, then add Combat Inability and Psionitronic Vulnerability (see below).
Speed: Remove all speeds from the base creature, then add a fly speed of 120 feet with perfect maneuverability, and a swim speed of 60 feet.
Melee: Remove all natural weapons from the base creature, then add the following. An observer has no primary natural weapons.
  • A secondary slam attack dealing 1d4 unmodified base damage.
Special Attacks/Actions: Remove all special attacks from the base creature, then add the following.
  • Utility Functions (Su): Once per round as free or immediate action, an observer may produce a correspond, know direction and locationmass missive or mindlink effect as if manifesting the power using a number of power points and an effective manifester level equal to 35 + its Hit Dice. Any save DC is Charisma-based. In addition, the range and duration of these effects is doubled.
  • Adamantine Strike (Ex): The natural weapons of observers overcome adamantine-based damage reduction.
Abilities: Change from the base creature as follows: Int 10, Cha +4.
Special Qualities: Same as the base creature plus the following.
  • All-Around Cosmic Sensors (Ex): An observer’s advanced sensor array allows it to look in any direction, and provides it with a +20 racial bonus on Listen, Spot and Search checks. An observer cannot be flanked. In addition, an observer suffers only one-tenth the normal penalty on Spot checks because of distance (-1 per 100 feet of distance, rather than -1 per 10 feet).
  • Cloaking Field (Ex): An observer's Cloaking Field is always active, rendering the observer itself invisible at all times, even when it attacks. This ability is inherent and not subject to the invisibility purge spell. Any creature under the effect of a Cloaking Field also gains the benefit of the Darkstalker (LoM 179) feat.
  • Combat Inability (Ex): Observers possess a low base attack bonus progression for their racial Hit Dice, and no primary natural weapons.
  • Induction Engines (Ex): Observers possess the reach and carrying capacity of a quadruped, and produce artificial gravity to provide thrust and lift, enabling them to fly, swim and otherwise maneuver. They gain a +4 racial bonus to Move Silently checks and may even fly in a vacuum without hindrance. Wind speeds and water currents affect observers as if they were two sizes larger than they actually are.
  • Perception Filters (Ex): An observer's instruments constantly provide it with all the benefits normally granted by the see invisibility spell and the steadfast perception power.
  • Perception Link (Su): Creatures in a mindlink with an observer, gain all the benefits normally granted by the see invisibility spell and the steadfast perception power, but only when looking into areas that lie within 5 miles of the observer.
  • Psionitronic Collectors (Ex): When subjected to a magical or psionic effect that would normally recover its hit points, a Construct with the Psionitronic subtype, always gains an equal number of temporary hit points instead.
  • Psionitronic Mind (Ex): A Construct with the Psionitronic subtype always has an Intelligence score, and gains a number of skill points as if it possessed the Outsider type. It counts all skills as class skills, but may not use any skill untrained. Although it can learn and evolve, it must obey its creator(s) and has no form of advancement based on its own experience. While it remains immune to charms, compulsions, phantasms, patterns, morale effects and fear, it can be affected by any other mind-affecting ability or effect, but only when produced by itself, its creator(s) or another individual they permit.
  • Psionitronic Prowess (Ex): All Constructs with the Psionitronic subtype gain Blind-Fight, Great Fortitude, Improved Initiative, Iron Will, Lightning Reflexes and Run as racial bonus feats.
  • Psionitronic Shield (Ex): A Construct with the Psionitronic subtype, usually has a temporary hit point capacity equal to half its undamaged hit point total (rounded up). Each round at the start of its turn, it automatically gains or loses 1 temporary hit point as needed to reach this total. Temporary hit points it gains from any source, always stack and have an instantaneous duration, but are otherwise lost in the typical manner.
  • Psionitronic Vulnerability (Ex): A Construct with the Psionitronic subtype is not immune to critical hits and precision damage. There is still a 50% chance that any critical hit or any precision damage scored against it is negated so that the damage is instead rolled normally.
Feats: A typical observer uses Alertness as its normal feat. It also gains Aerial Reflexes (RW 148), Clever Wrestling (Sto 92), Mobility and Quick Reconnoiter (CAd 112) as racial bonus feats.
Skills: A typical observer has the following skill ranks: Hide 4 ranks, Knowledge (any 11) 1 rank, Listen 4 ranks, Move Silently 4 ranks, Search 2 ranks, Spot 4 ranks and Tumble 3 ranks. It gains a +8 racial bonus to Swim checks. The creature can take a 10 on any Swim check, even when distracted or threatened. It may use the run action when flying or swimming, provided it does so in a straight line.

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