Shadowlands world bosses spawn once a week in a single area, as indicated by the purple world quest marker on the map.
There are currently four total world bosses in Shadowlands, but only one will appear per week. They will spawn in their associated area and can be located by the purple elite world quest marker. None of these world bosses can be solo, so you'll need to team up with other players if you plan to fight one. Fortunately, finding a group is simple: select the world quest to display it in your quest log and select the group finder icon.
The rewards are all solid, so you'll find a group of like-minded adventurers. Since world bosses don't respawn on a timer, you can fight them soon after being defeated by a previous group. World bosses are hard to kill and come with their own mechanics to consider, and if you fall you will be stuck in front of your corpse for a full. Once the world boss dies you are free to break free, but until you are essentially out of the fight there.
However, don't worry about dying and missing your loot. All rewards are sent to you automatically once the world boss has been defeated, so even if you get crushed you won't lose your rewards. You can only earn rewards from World Bosses in Shadowlands once a week, so while you can help your friends defeat the Giant Bastards after you have done so, you won't earn anything else.
All the mechanics of the Shadowlands world bosses can be found in the adventure guide: none of them are cosmic and the usual "don't stay stupid" rule still applies. Below is a list of all of their loot, minus the conduits. Each world boss drops the same four conduits per class. So, Warriors have four available, Priests have four, etc. and etc.
Mortanis (found in Maldraxxas)
- Souvenir of a Cunning Charm: Thief - Take advantage of the natural ebb and flow of combat, allowing your Grim Strike to gradually increase damage dealt by up to 10%. This maximum effect will last for 10 seconds before disappearing and starting the cycle again.
- Fujieda's Memory: Warrior - Bloodthirsty increases your haste by 1% for 8 sec, stacking up to 5 times.
- Keefer's Memory: Monk - Tiger Palm also applies an effect that increases your critical strike chance by 50% for 6 sec on the target. This effect cannot be applied more than once every 1 min per target.
- Mortanis Rib Cage (Mail Chest)
- Band of the Risen Bonelord (ring)
- Bone spike pads (leather feet)
- Bone Crushing Vicegrips (mail hands)
- Shoulder blade vambraces (plate wrist)
- Spine Crawler Waist Cord (Cloth Waist)
Nurgash Muckformed (found in Revendreth)
- Memory of a Frenzied Monstrosity: Death Knight - Dark Transformation also increases the attack speed and damage of you and your monstrosity by 12%.
- Erratic Fel Core Memory: Demon Hunter - Fel Rush's cooldown is reduced by 30%.
- Memory of Azj'Aqir's Madness: Warlock - Chaos Bolt increases the damage of Chaos Bolt by 25% and reduces the cast time of Chaos Bolt by 20% for 3 sec.
- Comfortable sleep bands (fabric wrist)
- Hardened castle crushers (hands plates)
- Jingling Stone Stompers (mesh feet)
- Muckformed chain choker (neck)
- Nurgash Belt of Many Winding Stones (Leather Waist)
- Sinstone shoulder padding (fabric shoulder)
Oranomonos (found in Ardenweald)
- Remembrance of a Feverish Incantation: Mage - Each consecutive critical strike you deal increases your critical strike damage by 3%, up to 15%.
- Shot Memory: Hunter- Rapid Fire deals 25% more damage, and Vised Shot has a 15% chance to reset Rapid Fire's cooldown.
- Verdant Infusion Memory: Druid - Swiftmend no longer consumes healing over time and increases the duration of your healing over time effects on target by 8.
- Ironfoot bindings (mesh cuffs)
- Oranomonos Sheer Leggings (Leather Legs)
- Seed-Tender Hand Guards (Leather Hands)
- Slippers from the deciduous undergrowth (fabric feet)
- Stone bark girdle (slab cut)
- Twisted Witherroot Band (Ring)
Valinor, The Light of Aeons (found in Bastion)
- Memoir of Archbishop Benedictus: Priest - After the Spirit of Redemption expires, you will be revived at 100% health, based on your effectiveness during the Spirit of Redemption. After being resurrected, you cannot benefit from the Spirit of Redemption for 10 min.
- Memory of Final Verdict: Paladin - Replaces the Templar's Verdict with the Final Verdict, a devastating strike that deals (194% of Attack Power) Holy damage. Has a 15% chance to activate Hammer of Wrath and reset its cooldown.
- Windspeaker Lava Resurgence Memory: Shaman - When you cast Earth Shock, gain Lava Surge and increase the damage of your next lava explosion by 20%.
- Anima Charged Bracelet (Leather Wrist)
- Doubt Weaver's Handwraps (Cloth Hands)
- Oversized Centurion Helm (Plate Helm)
- Servo chain strap (mail size)
- Shroud of the penitent (rear)
- Valinor Ground Pounders (Flat Feed)
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