Pet rock. Enter your house in non-building mode; then, use your pet rock on a pet house. Then, you must retrieve the pet rock off the ground (by left-clicking it). Taking it from the "stored pets" interface on the pet house will not complete the task.
Take the normal route to the Dagannoth Kings. DO NOT go down the ladder to the boss room. Instead, run past the ladder and go further through the tunnels until you find the ladder to the Lighthouse.
Any pickaxe. A dragon pickaxe is recommended to get a temporary boost from 67 to 70.
Note: Four adamantite ores spawns are located right next to the entrance inside the mine right outside the walls of Jatizso. Hopping worlds does not reset the counter.
7. Obtain 100% support from your kingdom subjects.
Rake, pickaxe, axe, harpoon and/or lobster cage, depending on how you plan to gain support (it is recommended to use a rake or axe for fastest favour).
Combat equipment to kill the God Wars Dungeon generals, high strongly recommended. Boosts cannot be used. You must deal the most damage to the boss in order for the kill to count. See each individual pages for recommended gear/setups.
NOTE: Kills do NOT reset upon logging out or hopping worlds.