Lord of Skull Spiders

The Lord of the Skull Spiders is a giant Skull Spider that Guards the Ancient City on Okoto and commands the Skull Spiders via a telepathic link.

Lego.com description
The Lord of Skull Spiders is a fierce enemy. Its powerful death-lock attack can squeeze the air out of even the toughest hero. The giant critter controls the advancing army of skull spiders through a telepathic link.