[From the aborted project with Rob Kuntz, The Waystation of Water.]
NO. APPEARING: 4-24
ARMOR CLASS: 6
HIT DICE: 2+2
% IN LAIR: 10%
TREASURE TYPE: O
NO. OF ATTACKS: 2
SPECIAL ATTACKS: See below
SPECIAL DEFENSES: See below
MAGIC RESISTANCE: 15% to 1st level spells
INTELLIGENCE: Semi- to low
ALIGNMENT: Neutral Evil
SIZE: S-M (4-5' long)
PSIONIC ABILITY: Nil
Attack/Defense Modes: Nil/Nil
LEVEL/X.P. VALUE: IV/120 + 3/hp
The berlodaemon appears as a giant lamprey that pulls itself forward on two strong but stubby legs, dragging its body behind it. A third limb, like a deformed arm ending in claws, grows out of the top of its head. It is amphibious -- more like a frog physiologically -- and inhabits the stagnant mires and stinking cesspools of Hades. They are the bottom of the food chain amongst daemonkind, normally feeding only on what wayward souls fall their way. As such, they are seldom summoned to the Prime Material Plane on purpose.
The arm of a berlodaemon is capable of grasping and using simple tools, but is more often used for clawing at its prey. Much worse than its claw attack is its bite, for the berlodaemon's mouth functions much like a real lamprey's mouth. Once attached, the daemon can suck blood almost indefinitely (its lower body can swell up like a balloon). Blood loss amounts to an automatic 1-4 points of damage per round, and it cannot be dislodged unless it takes at least half its full hit points in damage.
The lowly berlodaemon enjoys few of the special abilities common to most higher daemons. Of the spell-like abilities, they only retain detect invisibility at will. They have 60' infravision and 90' ultravision. They still take only half-damage from acid, cold, and fire, and are immune to poison and paralysis. They can be harmed by normal weapons, though nomagical weapons that are not iron or silver do -2 points of damage.
As an amphibious creature, the berlodaemon can breathe both air and water, and can swim in water as fast as it can crawl on land.
Gygax's Dungeon Level from Hall of Many Panes
9 hours ago