Shadow spider

The  Shadow spider is a level 52 monster. If a player attacks this monster or the monster attacks them, it will drain their Prayer  points by half of the current amount, rounded up. They can never take away a player's last prayer point. When players reach a combat level  of 105, they cease being aggressive , unless they are found in the Wilderness . Several of these monsters are found near the entrance of the Waterfall Dungeon . Like Jungle spiders,  they do not show on the mini-map.