If the Stygian attacks, ride Ruin to the closed doorway during the battle to jump off and have control of Ruin. Repeat the process to increase your Chaoseater Blade level. The Stygian will disappear under the sand and resurface.
Once the Stygian frees itself, ride alongside it, and attack its body, but do not hit the helmet or the Stygian will attack you. Equip Combat Lore to increase the experience received from each strike and Bloodthirt to restore your health. Start the battle with the Stygian (Ashlands Boss) by killing phantom guard soldiers while riding Ruin. After using the chain, walk slightly further into the area to find a chest with the last Wrath Shard. You should see an orange object you can use to grab with the chain. Grab the growth, and pull yourself up into the opening. Jump on the wire to the left of the monsters, and continue left. Take a right out of the small cave you are transported to, and continue down the path until you reach the area with the three monsters hanging from the ceiling with the wire that you can jump to in the middle. Use the Serpent Hole to reach The Ashlands. The following Wrath Shards and Cores can be found at the indicated locations: Note: Empty vessels: Scalding Gallow, Choking Grounds, Twilight Cathedral, The Ashlands, Iron Canopy. The following Lifestone Shards and Cores can be found at the indicated locations. Then, visit Vulgrim to get the Harvester Scythe. Enter " The Hollow Lord" as a case-sensitive code.
Pause the game, select "Options", and choose "Enter Code".