Pause the game, select "Options", and choose "Enter Code". Enter "The Hollow Lord" as a case-sensitive code. Then, visit Vulgrim to get the Harvester Scythe.
Finding the final Wrath Shard
Use the Serpent Hole to reach The Ashlands. 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. Jump on the wire to the left of the monsters, and continue left. Grab the growth, and pull yourself up into the opening. Then, look to the right and up. You should see an orange object you can use to grab with the chain. After using the chain, walk slightly further into the area to find a chest with the last Wrath Shard.
Easy maximum Chaoseater Blade level
Start the battle with the Stygian (Ashlands Boss) by killing phantom guard soldiers while riding Ruin. Equip Combat Lore to increase the experience received from each strike and Bloodthirt to restore your health. Once the Stygian frees itself, ride alongside it, and attack its body, but do not hit the helmet or the Stygian will attack you. The Stygian will disappear under the sand and resurface. Repeat the process to increase your Chaoseater Blade level. If the Stygian attacks, ride Ruin to the closed doorway during the battle to jump off and have control of Ruin. Keep your back against the door, and wait for the Stygian to charge at you. You will get knocked through the door and can return to Vulgrim to reset the battle.
For each of the following achievement You need to finish following task.
Aerial Predator - Kill 160 enemies while on the angelic beast.
An Old Friend - Collect Mercy.
Ashes to Ashes - Defeat The Stygian.
Balance Restored - Complete the game on Normal difficulty.
Battle Hardened - Max out all weapons and unlock all combat moves.
BFA - Unlock everything
Chasm Jumper - Gain the Shadowflight Ability.
Dark Rider - Ride for 100 miles
Death Dealer - Meet Vulgrim.
Devastator - Kill 10 enemies with one Blade Geyser wrath attack.
Don’t Make Me Angry - Collect the Chaos Form Ability.
Elemental Thief - Collect the Crossblade.
Full Power - Collect the maximum amount of lifestones.
High Flier - Kill 5 duskbats without touching the ground.
Horseman - Kill 150 demons on horseback
Improvised Kills - Kill 150 enemies with items from the environment.
Into the Void - Collect the Voidwalker.
Legendary Form - Collect the Abyssal Armor Set.
Like A Bat Outta Hell - Defeat Tiamat.
One Mean Mother - Defeat Silitha.
One Tough Cookie - Meet Ulthane.
Open Air Parking - Destroy a helicopter during the apocalypse with a vehicle.
Payback’s A B**** - Defeat Straga
Prison Break - Free Samael from his prison.
Reach Out And Touch Somebody - Collect the Abyssal Chain.
Reaper - Collect the Scythe.
Reunited - Obtain Ruin.
River of Blood - Shed 3000 gallons of demon blood
Rocked Your Face Off - Defeat The Griever.
Sight Beyond Sight - Collect the Mask of Shadows.
Slayer - Kill 666 Demons
The Final Challenger? - Defeat The Destroyer.
The True Horseman - Complete the game on Apocalyptic difficulty.
Time Lapse - Gain the Chronomancer Ability.
To Move A Mountain - Collect the Earthcaller.
Treasure Hunter - Search 150 Caskets
Tremor Bringer - Collect the Tremor Gauntlet.
Ultimate Blade - Forge the Armageddon Blade
Who’s Counting? - Defeat more angels than Ulthane.
Worl Raider - Collect all 27 Artifacts
Wrath Machine - Collect all the Wrath Powers.
Wrath of War - Collect the maximum amount of wrath cores.
You Call This Easy? - Complete the game on Easy difficulty.