Re: Now that Classic Monsters is out
There are versions of the carrion crawler in M&T and CM (though the CM one is closer). The former is called the Fleshcrawler, and the latter is called the Cadaver Caterpillar (note the errata - the AC wasn't converted properly, and there's a discrepancy b/t the listed Attacks (8, no damage) and the description (in which it gives 6 antennae attacks, 1d2 each)).
Here's my displacer beast:
NO. ENCOUNTERED: 2-5
HD: 6 (d8)
MOVE: 40 ft.
ATTACKS: 2 Tentacles (2d4 each)
SPECIAL: Darkvision 60 ft., SR 6
TYPE: Magical Beast
XP: 180 + 6/hp
These beasts look somewhat like large pumas, but with two spiked tentacles emerging from their shoulders, which they use to attack during combat (rather than with claws or bite, strangely enough). Their bizarre molecular makeup causes them to appear a few feet from their actual position, making them harder to hit during combat (already factored into their AC) and more resistant to magic (SR 6). They hate all living things, especially blink dogs, which they will attack on sight.
Here's my umber hulk:
NO. ENCOUNTERED: 1-4
HD: 8 (d10)
MOVE: 20 ft. (10 – 20 ft. burrow)
ATTACKS: 2 Claws (2d4 each), 1 Bite (1d10)
SPECIAL: Darkvision 60 ft., Confusion
ALIGNMENT: Chaotic Evil
TYPE: Monstrous Humanoid
Umber hulks are subterranean creatures capable of burrowing through the earth (20 ft. through soil, 10 ft. through solid rock). They are aggressive, attacking with their claws and bite.
Confusion: Anyone looking an umber hulk square in their four eyes must save or be confused for 3d4 rounds.
I mocked up a near-version of the mind flayer:
NO. ENCOUNTERED: 1-4, 11-20
HD: 9 (d8)
MOVE: 30 ft.
ATTACKS: Bite (1d10), Weapon
SPECIAL: Soul Blast, Spellcasting, Darkvision 60 ft., SR 19
ALIGNMENT: Lawful Evil
XP: 800 + 9/hp
Soul Shredders are a subterranean race of humanoids so rare that they are thought by many to be nothing more than myth. From a distance, one might mistake them for human, but upon closer inspection, their hairless bodies, black eyes, and mottled grey skin give them away. Their mouths, when closed, appear relatively normal, except for the seams extending from the corners of their mouths almost to their ears. In combat, they are capable of spreading their mouths wide open, revealing mandibles with several rows of tiny razor-sharp teeth. Soul Shredders are thoroughly evil and precisely organized; only their small numbers currently prevent them from moving to the surface to begin world domination.
Combat: Soul Shredders prefer to defeat foes through the use of intelligence whenever possible, and are great fans of cruel and devious traps; however, they are not averse to physical combat when necessary. Although their bites are vicious, they generally reserve them for foes who attempt to grapple or otherwise move in too close. They are handy with a variety of weapons, preferring those with hooks, barbs, or spikes of some sort.
Soul Blast: Once per day, a Soul Shredder is capable of sending out a massive surge of psychic power at a single target in sight within a 100 ft. range. This blast bypasses any physical protection such as armor, and does 3d8 damage; furthermore, the target must make an Intelligence save or be affected as per the Insanity spell.
Spellcasting: Soul Shredders are able to cast spells as a 9th level Illusionist (including bonus for an 18 Intelligence). Specific spells vary from individual to individual, but spells that control thoughts, emotions, and behavior (e.g., Charm Person, Fear, Mass Suggestion) are a favorite.