Hydrix dragon

Hydrix dragons are high-level Slayer monsters requiring level 101 Slayer to kill. They are part of the gemstone dragon group, and are the strongest dragon of this type.

A total of six hydrix dragons are located under the Shilo Village mining site. They require the completion of the Hard Karamja Tasks in order to access them in the gem rock cavern 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 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 gemstone 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. As their slayer requirement currently surpasses the highest possible level until the release of Menaphos, they can only be killed while under the effects of a wild or wilder pie.

Getting there
The cave is located inside the gem mine in the northern part of Shilo Village in Karamja.

To be able to enter the cave players must have completed the Hard Karamja Tasks. To access the mine players can teleport directly to the gem mine with the option in the Karamja gloves 3 or 4.

Strategy
Hydrix dragons attack primarily with magic, although they will use both magic and melee if within melee range in addition to the regular dragon fire attack.

Hydrix dragons have a special attack in which they send a row of spikes towards the area that the player is currently standing on. After a short delay, there is a 3 by 3 square area where spikes appear, dealing magic damage and draining adrenaline to 0, while also applying a debuff where adrenaline gained is reduced to half for a few seconds. However, they will not use this special attack if you remain within melee distance of them.

Devotion in conjunction with Protect / Deflect Magic does block all damage done by the special attack, but it does not block the adrenaline loss nor does it prevent the debuff from occuring.

Main drops
Players will receive two drops from the main drop table each kill.