Player made at Lumbridge Swamp, Water Altar during Slug Menace quest.
Uses:
Used to repair the doorway in Slug Menace quest.
Notes:
A chisel is needed in order to form the shaped water rune. Go inside the water altar with your talisman and a few essence. Click on the page that says shape water rune. You might destroy the essence, so it may be good to take a pouch of essence.