Phycomid (CR 3)

Small Plant
Alignment: Always neutral
Initiative: +3; Senses: blindsight 30 ft. and tremorsense 60 ft.

AC: 16 (+1 size, +3 natural), touch 14, flat-footed 13
Hit Dice: 3d8+15 (28 hp)
Fort +8, Ref +4, Will +1
Speed: 10 ft.
Space: 5 ft./5 ft.
Base Attack +2; Grapple -2
Attack: Acid globules +6 ranged touch
Full Attack: 2 acid globules +6 ranged touch
Damage: Acid globules 1d4 acid
Special Attacks/Actions: Acid, infestation
Abilities: Str 10, Dex 17, Con 20, Int -, Wis 11, Cha 10
Special Qualities: Acid immunity, fire resistance 10, immunities, plant traits
Advancement: 4-6 HD (Medium), 7-9 HD (Large)
Climate/Terrain: Any underground
Organization: Solitary or swath (2-8)
Treasure/Possessions: None

Source: Dragon #337

Acid (Ex): Acid damage caused by a phycomid's acid spurt attack continues to burn for 1d4 rounds after initial contact, dealing an additional 1d4 points of acid damage each round. This acid can be washed off with water as a standard action.

Infestation (Ex): Each time an opponent is hit by a phycomid's acid spurt attack, he must make a DC 16 Fortitude saving throw. Failure indicates that the tenacious and fecund spores in the phycomid's acidic spurt take root and deal 1d2 points of Constitution damage. Each succeeding round the victim must make a new Fortitude save to avoid taking an additional 1d2 points of Constitution damage. Once the victim makes a saving throw against this infestation, the spores grow dormant and no longer threaten him. A victim reduced to 0 Constitution by this attack dies and his body is quickly devoured, transforming into a new phycomid in 1d4+4 rounds.

This infestation cannot affect creatures immune to disease or acid. Remove disease or any similar effect halts the infestation immediately, but does not restore lost Constitution. The save DC is Constitution-based.

Immunities (Ex): A phycomid is immune to gaze attacks, visual effects, illusions, and other attack forms that rely on sight.

A phycomid has no effective melee attack and thus cannot make attacks of opportunity. It attacks by extruding a thin stalk and spurting a small green glob of highly acidic fluid.