Dielgin's ghost

Habitat
In the Forgotten Cemetery there is a new grave with a hidden entrance in it. You can enter it, which will lead you into a crypt with rats and a long, narrow pathway with a grave at the end of the pathway. You can choose to open the grave, which will cause the ghost of Dielgin to appear and fight you. If you choose to do so, you better be prepared for a tough battle.

The fight
Most people fight him for his armour, Dielgin's equipment, which is one of the best equipment sets in RuneScape. He is much stronger than his combat level suggests. He also switches between protection prayers. He will teleport around the room, making it hard to use a safespot to fight him. Teleblock is very useful in this case. Ancient mace and Smash are also very effective in taking his prayer ability away.

Melee:
Pro: Can blow though prayer and defence.

Con: Dielgin has the ability to blow though prayer as well and fast too.

Ranged:
Pro: There are some safe spots in the room.

Cons: He can teleport around the room and use prayer to protect from it.

Magic:
Pro: Since he has armor, magic will be very effective and you are able to Teleblock him.

Con: He can protect from it.