Sounds good. Resuming the phase jelly...
Phase Jelly
by Greg Deckler
CLIMATE/TERRAIN: Any subterranean
FREQUENCY: Very rare
ORGANIZATION: Solitary
ACTIVITY CYCLE: Any
DIET: Omnivore
INTELLIGENCE: Animal (1)
TREASURE: J, M, Q
ALIGNMENT: Neutral
NO. APPEARING: 1
ARMOR CLASS: 8 (tentacles 5)
MOVEMENT: 3, Br 1
HIT DICE: 4
THAC0: 17
NO. OF ATTACKS: 1-10
DAMAGE/ATTACK: 1-2
SPECIAL ATTACKS: See below
SPECIAL DEFENSES: See below
MAGIC RESISTANCE: Nil
SIZE: M(4'-7')
MORALE: Average (10)
XP VALUE: 1,400
The phase jelly is a disgusting blob of sickly-smelling slime. Jellies can be any color imaginable, but a single specimen will be one color throughout. Each jelly has 10 tentacles, each ranging from 12' to 18' long.
Combat: The phase jelly attacks similarly to a marine ooze, its tentacles erupting from the floor, ceiling, or walls of subterranean passages. The jelly has the ability to phase into and out of solid stone, making these attacks possible. Although the tentacles secrete a noxious mixture that only causes 1-2 points of physical damage, creatures coming in contact with the mixture must save verses poison at +2 or become paralyzed.
The phase jelly has a far more insidious attack form. If any animal, human, or demi-human remains relatively stationary for three rounds or more in the vicinity of a hidden phase jelly, the jelly will attempt to slowly envelope its victim and phase back into the stone along with the victim's feet. This form of attack adds +3 to the jelly's attempt to surprise an intended victim. If the victim is surprised, the attack automatically succeeds. If the surprise fails, the victim can avoid the jelly with a successful Dexterity check. A victim who is phased into the floor with the jelly looses 8 hit points per turn he is in contact with the jelly and its acidic digestive juices.
The jelly is immune to acid and attacks from blunt weapons. Edged weapons cause only one-half damage. Fire, cold, and electricity cause full damage. In addition, electricity stuns any tentacles it touches for 1-10 rounds. A phase door or passwall spell will kill the jelly instantly if it is phased with the stone. Spells such as earthquake, move earth, rock to mud, or stone to flesh will force a jelly to the surface.
Habitat/Society: Phase jelly inhabits the darkest dungeons, usually lurking within the stonework and using its tentacles to sense the vibrations of passing creatures. Metal armor, weapons, and coins can be found in the vicinity of a jelly, as its digestive juices cannot handle these materials. These expelled materials often inadvertently create a trap for adventurers who attempt to greedily gather up the items.
It is a solitary creature and will not tolerate the presence of other phase jellies in its territory.
Ecology: Although the phase jelly can eat virtually any type of organic material, it is especially fond of drow. Phase jelly has no natural predators. Wizards have experimented with the jelly and its tentacles, but have found no useful spell components.
From Polyhedron #67 (1992).
Ability scores of other jellies:
Airjelly (S): Str 6, Dex 22, Con 28, Int -, Wis 1, Cha
Ochre Jelly (L): Str 15, Dex 1, Con 22, Int —, Wis 1, Cha
Shadow Jelly (L): Str 15, Dex 1, Con 18, Int -, Wis 1, Cha 1
Assassin Jelly (M): Str 15, Dex 15, Con 20, Int 10, Wis 14, Cha 1
Flesh Jelly (G): Str 32, Dex 6, Con 23, Int --, Wis 1, Cha 1
Its Intelligence is given as 1.
So maybe...Str 15, Dex 10, Con 20, Int 1, Wis 1, Cha 1?