Caustic Creature
'Caustic Skeleton' is an inherited Pattern that can be added to any Skeleton, hereafter referred to as the base creature.
A Caustic Skeleton uses all of the base creature's statistics and abilities except as noted below.
CR
Same as base creature +1.
Size and Type
The creature's Size and Type do not change.
Initiative Modifier
The creature's initiative modifier increases by half the amount that its CR increases, round up.
Senses
No changes.
Armor Class
Caustic Skeletons gain +2 AC. This is granted by adding to the base creatures natural armor bonus.
Hit Dice
No changes.
Defensive Ability
A Caustic Skeleton gains the following abilities, which may be added to their Bestiary entry:
Aura: Once per round, when it makes any attack action, a Caustic Skeleton emits a fine spray of corrosive marrow from it's bile-soaked bones. This is an acidic damage aura that effects all enemy creatures within CR/10 (round down, minimum 1) of the Caustic Skeleton's space. This damage aura inflicts 2d6+CR of acid damage. Affected characters may roll a CR appropriate Fort save for half damage.
SR: - Same as Base Creature
Special Defenses: The Caustic Skeleton gains ER/acid equal to CR+12. If it already had ER/acid from another source, they do not stack, only the larger amount of ER applies.
Speed
A Caustic Skeleton's base speed improves by ten feet in all movement categories it has.
Melee Attacks
A Caustic Skeleton retains all the base creature's attacks, and its weapon and armor proficiencies. These attacks retain the same primary or secondary status they had for the base creature. Beginning at CR9, the Caustic Skeleton adds 1d6 of acid damage to all its melee attacks.
Damage
The base damage of all attacks does not change.
Space and Reach
No Changes.
Offensive Ability
Aside from the changes above and below, no offensive abilities.
Ability Scores
No changes.
Base Attack Bonus
No changes.
Maneuver Offense and Maneuver Defense
No changes.
Feats
No changes.
Skills
No changes.