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Acid Creature (CR +2)

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Creatures from blighted areas of the Elemental Planes of Earth and Water, acid creatures are moving pools of corrosive acid shaped as more familiar creatures. Acid creatures can be found anywhere large concentrations of acid exist, or in highly polluted environments. They are sometimes made during failed alchemical experiments, or when a creature is exposed to a large amount of acid. Water-elemental-based creatures are particularly susceptible, transforming into insane mockeries of their original form.

Following the instinct to dissolve and consume all they can, acid creatures can quickly eradicate their hunting grounds of other life forms

Creating an Acid Creature

Acid” is an inherited template that can be applied to any living corporeal creature (referred to hereafter as the base creature). An acid creature uses all the base creature's statistics and special abilities, except as noted here.

Challenge Rating: Same as base creature +2.

Type: The acid creature's type changes to outsider and gains the elemental and extraplanar subtypes. If your game has an acid subtype acid creature gains it. If the base creature has the water or aquatic subtypes, it loses them. Recalculate base attack bonuses, saves, or skill points.

Hit Dice: Change all of the base creature's racial HD to d10s.

Defensive Abilities: An acid creature gains immunity to acid.

Weaknesses: An acid creature gains the following weakness.

Water Vulnerability (Ex)

For every gallon of freshwater an acid creature is exposed to, it takes 1d6 damage. If it is submerged in water, the damage increases to 1d8 per round it is submerged. An acid creature cannot heal this damage until it is no longer exposed to the water.

Special Attacks: An acid creature gains the engulf universal ability. Engulfed opponents take acid damage equal to the acid creature's acidic strikes ability each round (see below). Additionally, it gains the following.

Acid Pool (Ex)

An acid creature is surrounded at all times by pool of acid. The pool is a spread with a radius of twice the acid creature's space (thus a creature with a 5 ft. space would have a 10 ft. radius pool). Anything coming into contact with this acid takes acid damage (no save) equal to a base of 1d6 for Medium; the damage scales with size. If the base creature can fly, the creature does not have a pool of acid surrounding it while flying, but instead drips acid on those below (see Acid Rain below).

Acid Rain (Ex)

Anything beneath a flying acid creature takes damage from dripping acid. The acid damage is equal to the acid creature's acid pool damage (see Acid Pool). A Reflex save is allowed for half damage. If the acid creature can hover, anything under it takes this damage each round the acid creature maintains the hover. The Reflex save DC is Dexterity-based.

Acidic Spellcasting (Su)

An acid creature casts all spells and spell-like abilities with the acid descriptor at one caster level higher. Spells or use of spell-like abilities with the water descriptor are automatically changed to the acid descriptor, deal acid damage, and are cast at one caster level higher. If the spell creates water, it now creates acid, and it does damage equal to the damage from its acidic strikes ability (see below). As a free action, an acid creature can have any damaging spell or spell-like ability deal half of its damage as acid damage. Such spells and spell-like abilities are not cast at the increased caster level. If this ability is used on a spell or spell-like ability that deals nonlethal damage, the acid creature can have it do acid damage equal to half of the listed damage amount.

Acidic Strikes (Ex)

A Medium acid creature's natural attacks deal an additional 1d6 acid damage, plus an additional 1d6 acid damage for every 5 racial HD the base creature has. The damage scales with size and stacks with any other acid damage the creature does.

Skills: An acid creature gains Swim as a class skill.

Special Qualities: An acid creature gains the following.

Acidic Body (Ex)

An acid creature's touch corrodes any material it touches except stone. For each round it maintains its touch to an object the acid creature does its acid strikes damage to that object (including most equipment). Anyone grappled by or grappling an acid creature takes this damage every round until the grapple is broken. Additionally, any supernatural or extraordinary ability the base creature has that has water in its name or affects water instead effects acid.

Acidic Swimming (Ex)

An acid creature with a swim speed can swim through acid as a normal creature swims through water. If the base creature does not have a swim speed it gains one at its highest speed or 20 feet, whichever is larger.

Environment: any nonaquatic