Dinrova Horror

The dimir have manny ways to get ridd on unwanted visitors. One of them is the Dinrova Horrors. They are learge tentacles creatures that shulk around in the lowest layers of ravnica. Tey utilize dazing lights and hypnosis to paralize their prey and the dimir often redirect intruders into their huntinggrounds to get rid of them.

Refferences:

https://scryfall.com/card/gtc/155/dinrova-horror