Bakhna Rakhna

Food-stealing, hunchback goblins isn't really an enemy you think of when playing Ravenloft.

Bakhna Rakhna are a branch of the goblinoid family tree native to the Demiplane of Dread. Described as resembling pallid/albino goblins with paralytic venom for blood and the ability to literally walk through walls (treated as the ability to cast Passwall as a spell-like ability several times per day) they are light-sensitive denizens of temperate forests. Though characterized as Neutral Evil, they are really more accurately described as petty nuisances than anything else. You see, the great evil that the bakhna rakhna obsess over is... stealing food. Like, seriously, that's all they want to do; pilfer pies from windows or sneak into peoples' homes at nights to raid their pantries, often making a mess in the process. If you leave food out for them, they'll literally just take the food and go, leaving you alone. Even if you just let them raid your pantry, they'll bugger off after a couple of days. If attacked, they'll run away, using arrows poisoned with their paralytic blood to discourage pursuit. Only if you try to lay traps for them or persist in trying to hurt them will they return the favor.

They're so inoffensive that their 3e lore actually retconned in a story of a farmer staying up all night armed with an axe to guard his pantry from some bakhna rakhna, only for the goblinkin to eat his children, to try and make them seem more monstrous.

They were introduced back in the days of Advanced Dungeons & Dragons 2nd edition, in the Ravenloft Monstrous Compendium Appendix III, and then made it into Dungeons & Dragons 3rd Edition.