Roper

Ropers are monstrosities. They are ambush hunters, taking the appearance of a stalagmite while waiting for their prey to get close.

Appearance
While waiting for prey they are indistinguishable from a regular stalagmite. When in combat they reveal their tendrils and their fang-filled mouths.

Known Ropers
The Mighty Nein encountered two ropers while making their way through the Underdark tunnels left by the Kryn drow.

They also encountered a roper on the bridge on their way through the Umbra Gates.

Trivia
On the first encounter with a roper, Travis Willingham exclaimed, "What is that sadistic Japanese traffic cone?"