Goolomps are very suspicious of anyone they encounter and will immediately use their innate ESP ability to uncover a party’s motivations. They can communicate telepathically and psychically attack an adversary if need be. Desperate for a way home, they’re eager to converse and trade with anyone capable of interdimensional travel. Their own method involves the use of teleporting machines - hence their predicament. Goolomps* are not above the use of violence and the theft of magic items if they believe it will aid their quest. They are averse to collaborating with humans and elves (whom they regard as stupid and ugly).
Goolomp: HD 2; AC 8 ; Atk 1 claw or bite for 1 hp damage or preferably Special; Move 9; Save 13; CL/XP 3/300; Special: ESP, Telepathy, Ego Whip per combat round for d6 damage (Save allowed, target goes to sleep with nightmares of inferiority for d6 turns if HP reduced to zero or less; thereafter HP returns to normal). In addition to Ego Whip, they can emit a Psychic Screech once per day causing Confusion (per the spell).
* My wife chose the name Goolomp here after I showed her the above artwork and asked for a suggestion. She swears she's never heard of the Castlevania monster of the same name.
Text of this post licensed under the OGL; “Goolomp” art above is public domain - tidied up with the GIMP a bit. Original source image from a forgotten Golden Age comic from the '50s.