Druidic Ritual - Herblore - Has to be completed in order to start learning this skill. Rune Mysteries - Runecrafting - Must be completed in RS gold order to start training this skill. It can be learned in Varrock. Plague City - Ardougne Teleport unlocking Teleports is always practical. Although this one is not needed (you could get tardy in a flash by using Skills Necklace and teleporting to Fishing Guild) it is helpful.
Dragon-like creature whose body is made of rock. One of the most powerful level monsters available with an Combat rank of 785, his location is accessible via the Games Necklace teleport. Because the boss is extremely large health pool of 2000 and additional 50% defense bonus for everything , excluding halberds as well as spears, he is extremely difficult to defeat as a single player. Because of this, players typically form teams against this opponent.
The boss is known to drop many valuable items , such as Sigils which are necessary for the creation of Spirit Shields. Those items are dropped only via Corporeal Beast and because of that they are extremely pricey with prices that buy OSRS gold can exceed 100mil. On top of that boss may drop some dragon-tier items, such as Holy Elixir, a lot of seeds, and even top clue scrolls.