Stasis web

A stasis web was a device in the Beast Wars portion of the Generation 1 continuity family.

Part of the sick and disturbed pleasures of the sick and disturbed Tarantulas, stasis webs were a creation the mad scientist used in feasting—on Transformers.

Fiction

Beast Wars

A stasis web was designed to hold a victim in place and drain their energon while leaving their flesh intact. The webs power draining capabilities could be adjusted, draining the victim much quicker, but Tarantulas preferred a slower method, claiming that the flesh was better preserved by going slower. It also served as a restraining device, preventing the victim from transforming and escaping. A blast from an energy weapon could sever the webs. After the Maximal Cheetor pointed out that he had no blood, Tarantulas claimed that he found he preferred the act over the nourishment. The Web

That's just creepy, even for Tarantulas.