Hydrix dragon

Hydrix dragons are high-level Slayer monsters, due to be released on 3 April 2017. They're part of the gemstone dragon group, and are the strongest dragon of this type.

Hydrix dragons are located underneath the Shilo Village mining site, and require the completion of the Hard Karamja Task list in order to access them in the gem rock cave underneath. In order to pass the barrier to confront them, players are also required to sacrifice a number of uncut dragonstone, uncut onyx, or uncut hydrix gems - with each gem type allowing the player to kill a certain (currently unspecified) number of dragons within their respective chamber; up to a limit of storing 60,000 kills at a time. If the player is on a Slayer task for hydrix dragons, however, they may enter the hydrix dragon area without the need for charges, and, if the player has already donated gems for charges, the charges will not be consumed while on-task.

Hydrix dragons, as with all gemstone dragons, require 101 Slayer to kill, and on release players will need to use a stat-boosting wilder pie in order to kill them.