History of Taken Hydra

A Taken Hydra is a Taken version of the Vex Hydra, corrupted by Darkness and turned into a Taken unit. Each one is a unique enemy with its own variant abilities. It keeps the Hydra's chassis and high durability, and its listed abilities include midair levitation and summoning Taken units.

The community wiki describes a Taken Hydra as protected by two to three rotating shields that are impregnable to damage, with damage only possible through brief gaps between shields. Destinypedia does not describe a shield and lists only the high durability.