Wizards of the Coast. Accessed at the Monster Manual II Art Gallery here
[This one might be a bit of a stretch. The original flavor text doesn’t mention primates at all, but the jug ears and the curling tail make me think simian. The ice runes ability was originally super broken, allowing the immoth to cast any spell as a free action. I’ve toned it down using the warpriest’s fervor ability as a model.]
Immoth This creature
appears to be a bearded, bipedal monkey composed entirely of ice. Its long tail
curves behind it and ends in a jagged stinger. Strange glyphs dot its body,
almost like tattoos or scars.
Immoths are inscrutable sages of the elemental
planes, acting as archivists and information brokers to celestials, fiends and
genies alike. Although immoths are native to the icy borderlands of the Planes
of Air and Water, they are frequently found on the Material Plane or other
worlds in search of legends and lore. All immoths specialize in one or two
topics or particular interest, but they do keep an eye out for particularly
rare or useful information of all kinds. An immoth is a walking library—it can
perfectly recall everything it has ever seen, read or heard, making them prized
by those who seek information and despised by those who would control or redact
it.
Immoths are particularly interested in the magic
inherent in words and symbols, and they credit their existence to a powerful
variant of a symbol spell that transformed them from inanimate ice into living
beings. The ice runes they carve on their bodies reflect an immoth’s personal
history and intellectual focus, and an immoth can draw on these runes to heal
themselves or enhance their inherent magic. Most immoths trend towards
neutrality, although they can vary in alignment as mortals do. Evil immoths
will not hesitate to steal or kill to get the information they crave, whereas
goodly immoth understand the value of fair exchange and limit their dealings
with unscrupulous sources.
In combat, immoths alternate between spells and
their physical prowess and have little compunction about getting their hands
dirty. Against opponents who may know useful things, they favor attacks with
their venomous stinger, hoping to numb the enemy’s muscles and will alike to
make capture and interrogation easier. Although no physical or mental barrier
prevents an immoth from learning fire spells, to do so is seen as anathema.
Immoths wielding fire magic are seen as dangerous heretics by their kin.
Immoths are stocky and broad for a Large creature,
being nine feet tall and six feet wide at the shoulders. Their icy composition
leads them to weigh less than most creatures of their size.
Immoths deal frequently with Fawfin’s faithful, bartering for knowledge and offering their assistance in combat against hoarders of knowledge like the keepers.
Shores of Swords 