During the quest, Open Souls, The Chaos Druid Dethtoyew fires a strange attack that seems to hit very high. After the quest, if you ask Sanfew he will tell you it is Called Dark Magick and is an ancient magic attack used only by High Level Zamorak mages. What he uses is how it looks but it dose damage-A LOT of damage. Players cannot fire this spell but it may be a spell that can be used in the future.