Olive slime

An olive slime was a rare and dangerous ooze that would drop onto its victims from above.

Description
Olive slimes were related to green slimes, but grew whilst clinging to ceilings. They were larger and more dangerous than their green slime cousins, and preferred moister areas. Olive slimes glistened but maintained a dirty green sludgy appearance. They were unintelligent slimes, but could thrive due to their numerous immunities.

Combat
These slimes were very sensitive to their surroundings, and could sense the vibrations of the creatures below them. Once they felt such vibrations, they could release their tendrils and drop down onto their victims. The victims' armor didn't determine the slimes' ability to deal damage. As with many other slimes, contact with olive slimes would cause a numbing poison to infect the victims. The olive slime poison would spread over the victims' bodies and the slimes' parasitic tendrils fed upon the hosts. The feeding process would begin to affect the victims' brains, and take over their bodies. If the victims were unable to get rid of the slimes, they would metamorphose into some sorts of vegetable creatures, where their skin and muscle tissue would be replaced. Once the metamorphosis of the hosts were complete, they would become an olive slime creature. Once olive slimes had fully converted the hosts, there was little hope of recovery, short of a limited wish spell.

Olive slimes were only harmed by the elements of cold, fire, as well as acid. The only other thing that could harm such slimes were a remove disease spell. In addition to this, spells that impede plants would also work on such slimes, apart from spells such as entangle, which the oozes could easily slip out of.

Ecology
They formed colonies and appeared in groups of one to four. Olive slimes fed on whatever vegetables, animals and even metallic substances they could find. Olive slimes were the opposite of green slimes, in that when they encountered each other, their attacks would neutralise the other.

Origin
Some scholars theorised that olive slimes were a subspecies of green slimes, that had been transformed by exposure to sickstone. Other claimed that they originated from the Abyss, as they were dangerous ooze-like plants, so could have come from Juiblex's realm.

Appearances

 * Video games
 * Icewind Dale
 * Icewind Dale: Trials of the Luremaster
 * Icewind Dale II