Evard's black tentacles

Evard's black tentacles was a conjuration spell that conjured tentacles to grapple and restrain opponents. It was presumably developed by Evard.

Effect
This spell conjured many rubbery black tentacles that grabbed everything in the area. For up to a minute, the tentacles would try to restrain anything that entered or stayed in the area, and cause bludgeoning damage. The area that was covered by the tentacles (20-foot square) would be difficult for creatures to traverse.

Components
Vocal and somatic components were required to cast this spell, as well as a piece of a tentacle from a giant octopus or a giant squid.

History
Evard's black tentacles was unknown to the Netherese. By 759 DR, it was known only to southerner spellcasters.

In the mid–14th century DR, Evard's black tentacles was still a rare spell in the Realms.