The Scalding Chasm Firewyrm in Game of Thrones: Kingsroad is an endgame co-op raid boss in the Altar of Lost Memories. Unlocked alongside World Difficulty Level 8 in the September 30 update, defeating this volcanic beast requires an entry Momentum of 280,000 or higher, coordinated ranged mechanics using sulfur arrows, and strict positioning to survive spreading lava and wipe mechanics.
Official patch data confirms the raid shares its two weekly reward claims with the Kraken encounter. Defeating the Firewyrm grants materials for crafting nine exclusive Amulets and drops Pure Sacred Tree Sap, an essential promotion reagent required to push jewelry slot enhancements past Level 40 up to the Stage 60 cap.
Raid Requirements and Setup Overview
Before entering the Scalding Chasm, players must meet account and gear thresholds. While some community party matchmaking listings have tested minimum entry parameters around 230,000 Momentum, the official update specification designates 280,000 Momentum for entry.
| Requirement / Parameter | Official Value / Requirement | Details |
|---|---|---|
| Encounter Name | Altar of Lost Memories: Scalding Chasm Firewyrm | Added in the September 30 update |
| Required Momentum | 280,000 or higher | Listed in official game patch notes |
| Weekly Reward Limit | 2 claims per week | Shared with Kraken (Normal/Hard) |
| Core Key Items | Pure Sacred Tree Sap | Required for Level 40 jewelry slot promotion |
| Special Raid Gear | 9 Craftable Amulets | Rare, Epic, and Legendary tiers |
| Event Requirement | Episode XIX: Captive Honor | Unlocks the limited-time Challenge Firewyrm! event |
To maximize survivability and damage, players frequently bring offensive concoctions like sharpness concoctions, configure evasion counters, and gather God's Haven regional buffs beforehand (such as the Reach's attack power and critical strike boost or the Stormlands' attack power and damage reduction).
Phase 1: Arena Entry and Stone Barrage
The encounter begins on the upper tier of the volcanic arena. The Firewyrm targets the first player entering combat, opening with a projectile attack that flings two large volcanic stones in succession.
During this opening phase, combat operates on standard melee and ranged trades:
- Avoid the initial two boulder throws by dodging laterally.
- Stay responsive to frontal swipes from the beast's forelegs.
- Deal steady damage until reaching the Firewyrm's first health threshold.
Once damaged to the designated milestone, the Firewyrm burrows into the stone, creating a cave entrance leading deeper into the caldera.
Phase 2: Sulfur Arrow Chasm Descent
Normal weapons and standard arrows inflict zero damage against the Firewyrm while it rests in the newly opened tunnel. To register hits and progress the encounter, party members must coat their projectiles with sulfur effects from nearby environmental deposits.
- Approach the sulfur nodes around the chasm rim to imbue your ammunition.
- Fire coated sulfur arrows into the Firewyrm; a minimum of 20 successful hits is required to force it down into the core.
- Do not jump immediately into the lower chamber after landing 20 shots. Interact with the sulfur node one more time to fully replenish sulfur arrow stacks before descending, as these arrows remain critical throughout Phase 3.
Phase 3: The Magma Core and Pyroclastic Flow
The third phase takes place inside the volcano's interior cave. The encounter introduces escalating environmental pressure alongside specific boss events.
The Spreading Lava and Hot Spring Cleansing
The cave floor gradually fills with molten lava beneath the boss. Standing in or brushing against magma inflicts a persistent damage-over-time debuff that rapidly depletes health every few seconds.
- The lava expands across the floor as combat drags on; after 15 minutes, the entire cave floor becomes submerged.
- To cure the magma debuff, step into the cave's hot spring pool, which cleanses the burn damage and resets the status.
Center Stagger and Burrowing Sequence
At specific health gates, the Firewyrm burrows through the earth four consecutive times. It does not take damage during this animation. After the fourth burrow, the boss consistently erupts directly in the exact center of the arena floor.
- Position your party facing the middle of the arena as the fourth dive finishes.
- Immediately fire your banked sulfur arrows into the emerging beast.
- Landing enough sulfur hits will stun the Firewyrm, leaving it unconscious and incapacitated for several seconds, providing the primary DPS window to unleash high-damage skill rotations.
Surviving the Golden Rock Wipe Mechanic
When triggered by boss health drops, the encounter spawns a golden rock formation. The entire team must focus damage onto the golden rock to lower it into position:
- Lowering the rock creates shelter against the Firewyrm's pyroclastic flow, a cavern-wide firestorm capable of instantly eliminating anyone caught in the open.
- In later segments of Phase 3, two golden rocks appear simultaneously.
- Community runs note that if a player dies and revives on the upper ledge during this mechanic, staying on the high entry platform completely avoids pyroclastic flow damage, allowing players to wait out the blast safely before dropping back down.
Optional Ceiling Phase and 1 HP Finish
High-damage parties may encounter or skip an alternate transition where the Firewyrm burrows once and anchors to the cavern ceiling, requiring roughly eight ranged hits to dislodge.
When the Firewyrm reaches its final health threshold, it begins swimming through the lava. Player testing highlights a critical soft-lock precaution: reduce the boss's health pool down to 1 HP, then cease attacking entirely until the swimming animation concludes and the defeat triggers naturally. Over-damaging or staggering during this specific animation can cause the creature to swim infinitely, preventing completion.
Firewyrm Attack Patterns and How to Dodge
The Firewyrm relies on distinct telegraphs. Learning each physical movement prevents needless potion consumption and momentum loss.
- Front Legs Attack: The boss raises one front leg before striking downward, alternating between left and right. This has a predictable windup and is the easiest basic attack to side-step.
- Roll Attack: The Firewyrm raises both front legs in rapid succession and rolls sideways across the floor. Watch the dual-leg lift to dodge clear before the roll begins.
- Glide Attack: The creature drops its left leg, pulls back its right leg, and glides forward across the stone twice in succession.
- Roar and Grab: The boss lets out a loud roar, creating an area shockwave, followed by a double-arm grab designed to lift and throw players.
- Ground Slam: An unvoiced, powered-up variation of the roar attack. The Firewyrm pauses to tense both front forelegs before violently slamming both limbs downward into the terrain.
- Circular Charge: A fast, unpredictable sweep where the Firewyrm lowers its upper body, accelerates forward, and loops around the player group.
- Twerk Attack: Frequently triggered whenever players attack it from the back. Reposition toward the flanks to avoid this rear attack.
Rewards and Exclusive Amulets
Completing the Scalding Chasm Firewyrm awards end-tier upgrade reagents and equipment components.
Craftable Amulets
Raid drops provide the specific materials needed to craft nine Amulets across three tiers:
- Rare: Polished Firewyrm's Heart Amulet, Polished Firewyrm's Breath Amulet, Polished Firewyrm's Brimstone Amulet
- Epic: Ornate Firewyrm's Heart Amulet, Ornate Firewyrm's Breath Amulet, Ornate Firewyrm's Brimstone Amulet
- Legendary: Brilliant Firewyrm's Heart Amulet, Brilliant Firewyrm's Breath Amulet, Brilliant Firewyrm's Brimstone Amulet
Progression and Limited Events
Clearing the encounter provides Pure Sacred Tree Sap, which unlocks jewelry slot enhancement past Level 40 up to the Level 60 cap. Additionally, participating accounts that finished Main Quest Episode XIX: Captive Honor could earn tiered completion rewards through the Challenge Firewyrm! event, including the exclusive "The Unburnt" title (1 clear), a Sealed Maester's Scroll (2 clears), the Scalding Chasm profile background (3 clears), and 500 Bound Golden Dragons (4 clears).
Frequently Asked Questions
What Momentum is required for the Firewyrm boss fight?
The official update notice specifies an entry Momentum requirement of 280,000 or higher. Player matchmaking parties frequently set minimum group filters around 230,000 Momentum, but official progression gates require reaching the higher benchmark.
Can you hurt the Firewyrm with regular weapons in Phase 2?
No. Standard arrows and regular weapons deal no damage to the Firewyrm while it sits in the chasm tunnel. You must pick up sulfur effects from the surrounding rocks to charge your arrows, requiring at least 20 hits to force the boss into Phase 3.
How do you survive the pyroclastic flow wipe attack?
Party members must attack the golden rock structures that spawn during the phase. Hiding directly behind the lowered rock shields players from the incoming firestorm. Alternatively, players who revive on the upper entry platform remain out of range of the pyroclastic flow and can wait until the attack clears.
What is the infinite swimming bug in the final phase?
During the final phase where the Firewyrm circles in the lava, attacking continuously while it is at minimum health can bug the animation, causing it to swim indefinitely without triggering the clear. Player guides recommend damaging it down to 1 HP and immediately halting all attacks until it collapses.
