Chaeldar

Chaeldar is the third most-advanced slayer master in RuneScape. She is found in the throne room of Zanaris, directly south of the entrance from the Lumbridge Swamp, meaning completion of the Lost City quest is required to reach her. She gives out mid to high level Slayer tasks which may only be attempted by players with a combat level of at least 70. Chaeldar gives 10 slayer points per task, 50 points per 10th task, and 150 points per 50th task.

Fairy rings
The Fairy ring network is a useful method of doing Chaeldar's Slayer tasks. It has teleport spots close to the Slayer Tower, the Fremennik Slayer Dungeon , and other locations to be reached easily for no cost to the player - all of which contain the slayer monsters that she assigns. However, you need to have reached a certain point in or completed the quest Fairytale II - Cure a Queen.