Semi-Corporeal (3.5e Creature Subtype)
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 Semi-Corporeal Subtype
Semi-corporeal creatures are not completely incorporeal. A semi-corporeal creature has an actual physical presence, but more often than not that presence is comprised of countless smaller objects, like stones, dust or smaller composite creatures that move contiguously and are bound to the spirit's will. Semi-corporeals possess certain traits akin to swarms, but they have the collective consciousness of a single creature, rather than a swarm of creatures. Semi-corporeals are naturally incorporeal spirit entities that accrue matter and objects in order to take physical form. The encompassing spirit entity can be considered as intangible for the purpose of fighting the monster, and is usually unaffected by the loss of its physical body. To truly kill a semi-corporeal, the spirit sustaining the physical form must be targeted and destroyed.
 Semi-Corporeal Traits
The following traits and abilities are common in every semi-corporeal creature.
- Blindsight out to 60 ft.
- Semi-corporeals usually have a hover speed, with varying levels of mobility, but certain sufficiently solidified semi-corporeals can move on solid ground as if walking. See the individual creature entries for more information.
- Swarm Traits: A semi-corporeal is comprised of a large number of similar components that make up its physical form, in the same way as a swarm is comprised of creatures. These components can differ in size, from Tiny or larger (such as rocks), to Diminutive or smaller (such as pebble-sized objects, dust or sand). The former type of semi-corporeal takes half damage from any physical attack that doesn't deal bludgeoning damage, whereas the latter type is completely immune to any form of physical damage.
- Furthermore, a semi-corporeal creature possesses any further trait and vulnerability of a swarm-type creature, except that a semi-corporeal can be of any size, and that it doesn't take extra damage from any spell or effect that affects an area.
- Immunity to vision-affecting effects (phantasms and patterns that have an effect on the eyes, gaze attacks).
- Immunity to poison, sleep effects, paralysis, stunning, disease, and death effects. These immunities are in addition to or overlap with the immunities of the semi-corporeal's creature type.
- Not subject to critical hits. Immune to damage to its physical ability scores (Strength, Dexterity, and Constitution), as well as to fatigue and exhaustion effects.
- Not at risk of death from massive damage, but when reduced to 0 hit points or less, it is either dispersed or destroyed.
Attacks: A semi-corporeal is proficient with any natural or manufactured weapons disclosed in its creature entry. It further possesses a swarm attack like any normal swarm. The damage that this attack deals depends on the semi-corporeal's Hit Dice, but increases by an additional +1d6 for every size category the semi-corporeal is larger than Medium.
Spirit Entity (Ex): Regardless of its form or shape, a semi-corporeal is an entity wrought by the effort of its controlling spirit. This spirit is incorporeal, and can be a ghost or a composite soul of some kind. Semi-corporeals take normal (and lethal) damage from weapons with the ghost touch enhancement. Any attack made with a ghost touch weapon automatically bypasses any damage reduction, regeneration or other damage resisting ability the creature has, and when slain by such a weapon, a semi-corporeal creature is destroyed outright, rather than dispersed. Normal attacks, spells and effects merely disperse the creature, allowing the spirit to reform its body at full hit points within 2d4 hours.
Elusive Body (Ex): Creatures take a -8 penalty to grapple checks against a semi-corporeal creature made of objects of Tiny size or larger, but are not prevented from making an attack while grappled. Semi-corporeals formed from smaller objects cannot be grappled at all.