Monster Geographica - Marsh & Aquatic.pdf - The Secrets of the ...

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Rust Fern
Medium Plant
Hit Dice: 8d8+16 (52 hp)
Initiative: -5
Speed: Swim 10 ft. (2 squares)
Armor Class: 5 (-5 Dex), touch 5, flat-footed 5
Base Attack/Grapple: +6/+1
Attack: Fronds +1 melee (1d6-5 plus 1d6
acid)
Full Attack: Fronds +1 melee (1d6-5 plus 1d6
acid)
Space/Reach: 5 ft./5 ft.
Special Attacks: Acid
Special Qualities: Blindsight 60 ft., immunity
to water effects, plant traits
The innocuous duster of fronds stirs upon the
water’s surface as a hazy reddish substance bubbles
up around it, accompanied by a faint hissing sound.
Combat
A rust fern releases a powerful acid that rapidly
decomposes wood, leather, and other non-metallic
substances. Though it appears to corrode metal over
several hours of exposure, it does no real damage to
metal items. It floats up to and surrounds its “prey”
as much as possible, then releases its digestive
secretions. The acid has a reddish tinge and bubbles
as it breaks down a potential food source. Lake
dwellers have no problem identifying a rust fern
once it releases its acid, but they cannot always
distinguish it from harmless plants beforehand.
Acid (Ex): A rust fern’s acid corrodes any
substance it touches, dealing 16 points of damage
Sebrefin
Medium Animal (Aquatic)
Hit Dice: 4d8+12 (30 hp)
Initiative: +2
Speed: Swim 30 ft. (6 squares)
Armor Class: 23 (+3 Dex, +10 natural),
touch 13, flat-footed 20
Base Attack/Grapple: +3/+3
Attack: Fins +6 melee (1d10)
Full Attack: Fins +6 melee (1d10)
Space/Reach: 5 ft./5 ft.
Special Attack: Thrash, threads
Special Qualities: Bladed defense, lowlight
vision
54
Saves: Fort +8, Ref -3, Will +0
Abilities: Str 1, Dex 1, Con 15, Int —, Wis 6,
Cha 1
Skills: Swim +3
Feats: —
Environment: Temperate and warm aquatic
and marsh
Organization: Colony (solitary) or clutch
(2-3)
Challenge Rating: 3
Treasure: None
Alignment: Always neutral
Advancement: 9-16 HD (Medium); 17-24
(Large)
Level Adjustment: —
per round of exposure. This is sufficient to destroy
1 inch of wood in about 10 minutes and a similar
volume of leather in about 5 minutes. Any melee hit
by a rust fern deals 1d6 points of acid damage.
Immunity to Water Effects (Ex): A rust fern
is immune to any spell or effect that utilizes water,
such as a quench spell.
Blindsense (Ex): A rust fern’s superior
nervous system senses prey, detecting vibrations in
and on the water and recognizing changes in light
patterns up to 60 feet distant.
Skills: A rust fern has a +8 racial bonus on any
Swim check to perform some special action or avoid
a hazard. It can always choose to take 10 on a Swim
check, even if distracted or endangered. It can use
the run action while swimming, provided it swims
in a straight line.
Saves: Fort +7, Ref +7, Will + 1
Abilities: Str 10, Dex 16, Con 16, lnt l, Wis
l0, Cha l4
Skills: Listen +5, Spot +6, Swim +8
Feats: Alertness, Weapon Finesse
Environment: Any aquatic
Organization: Solitary
Challenge Rating: 3
Alignment: Always neutral
Treasure: None
Advancement: 5-8 HD (Medium), 9-12 HD
(Large)
Level Adjustment: —