Learn the encounter before your next pull. This guide is an original English synthesis of reviewed YouTube captions and official Korean mode rules. Follow the specific difficulty and source version shown below.
Mechanic instructions follow the cited gameplay explanation. HP percentages identify approximate phase triggers, not a guaranteed attack timeline.
Entry, difficulty & preparation
Reach the required kill count and activate checkpoints. A designated runner can open the route while the group finishes required enemies, provided the party agrees and can survive the split.
| Check | What to use |
|---|---|
| Mode covered | Stage 4 |
| Group | Up to 5 — current Korean party format |
| Entry requirements | Select this dungeon and difficulty in the entry panel. Check character level, item level, minimum party size and remaining entries there. The reviewed mechanic videos do not establish a current numeric admission threshold. |
| Before pulling | Agree assignments, activate available checkpoints, clear pursuing enemies and prepare movement, defensive and stagger skills. |
Evidence: NC · Transcendence rules ↗ · Madsin · Deus Research Base ↗
Gelcos
Keep one outer bait lane clear. Melee should not follow the furthest target into the dash path.
| Tell / phase | Your response | Why it matters |
|---|---|---|
| Furthest-player mark | Bait the dash and its lasting lightning line toward an outer lane. Expect another dash before the jump. | Crossing lines remove the group’s working space. |
| Pull and whip | Move behind the frontal attack; below half health leave the pull area promptly. | The follow-up area is separate from the initial pull. |
| Centre sequence around 50% | Move out of the close blast, then in for the donut while avoiding star-shaped lanes. | The safe distance changes during the sequence. |
| Around 25% | Leave extra room beside existing lightning lines. | The lines expand in the late phase. |
Evidence: Madsin · Gelcos · 3:27 ↗
Nazmun
Re-establish a clear tank position after every spread. Do not chase the boss up the exit ramp.
| Tell / phase | Your response | Why it matters |
|---|---|---|
| Central lasers and mines | Tank toward the edge without crossing the ramp reset boundary. Avoid mines that stun. | An arena reset or a stun during lasers can end the attempt. |
| Donut bomb on tank around 75% | Use the donut’s inner safe space without overlapping other hazards. Around 35%, watch for a second target. | Later positioning must account for two markers. |
| One / two / three frontal laser hits | Sidestep the lane or use a defence that covers the sequence. | One successful block does not resolve every hit. |
| Personal circles | Spread into separate lanes. | Several marked players moving together multiply the damage. |
Evidence: Madsin · Nazmun · 4:46 ↗
Atiel
This is the original Transcendence lab. Consumed Deus Research Base is a separate Expedition guide.
| Tell / phase | Your response | Why it matters |
|---|---|---|
| Around 75% / 35%, centre push and projectiles | Stay within reach of the centre while dodging alternating projectiles. The outer floor falls after a short delay. | Running to the edge to escape the push leads to a fall. |
| Players tethered to the tank | Spread to break the links, then return for the grabbed player’s share. The source uses at least three players. | Breaking the link alone leaves the grab unresolved. |
| Around 50%, tethers attach to Atiel | Stay near the boss; a red tether warns that you are too far. | This tether requires the opposite response to player-linked tethers. |
| Around 25%, rotating cones and stagger cast | Spend saved stagger together while moving around cones and pushes. The source shows roughly ten seconds. | Failure destroys the platform. |
| Grab, furthest-target circles and clone dashes | Sidestep the grab, drop ranged circles apart and watch for late clone lanes. | Knockbacks can send you into missing floor. |
Evidence: Madsin · Atiel · 5:45 ↗
Difficulty changes & encounter details
The reviewed Stage 4 adds Judgment: three boss-hit stacks create personal circles, and the source identifies the stacks as cleansable. Earlier affixes include elite purple pools that damage players and strengthen enemies, and trash enrage below half health. NC now lists stages 1–10; this page specifically covers the reviewed Stage 4.
Evidence: Madsin · Deus Research Base ↗
Tank, healer & DPS assignments
Strategy recommendationSuggested preparation for this encounter. These assignments are editorial recommendations based on the mechanics above.
| Role | Assignment |
|---|---|
| Tank | Aim dashes outward and keep Atiel near usable floor. |
| Healer / support | Cleanse Judgment when possible and prepare recovery after tether shares. |
| DPS | Hold stagger for Atiel and watch the connections on every tether. |
Evidence: Madsin · Deus Research Base ↗
After a wipe: fix the cause
Strategy recommendationName the failed mechanic before the next pull. Check whether the target moved too early, the group missed its assignment, or a required cooldown was unavailable. Reassign a backup for any job that can target its original owner. Surviving the mechanic comes before completing a damage rotation.
- Call the next mechanic before the HP threshold; the actual cast may occur later.
- If a hit-count object is involved, use fast direct hits rather than assuming a long damage cooldown is better.
- Save burst for a real vulnerability window after the group has completed its movement.
- Check the current entry panel for loot probabilities and reward availability before spending another run.
Evidence: NC · Transcendence rules ↗ · Madsin · Deus Research Base ↗
Sources & research scope
Original English synthesis. Video explanations establish the encounter strategy for the cited version; official Korean pages establish mode, entry and reward rules. Review date: 29 September 2026.
NC · Transcendence rules ↗
Current Korean rules, read 29 September 2026. Admission and reward rules are separate from the older encounter footage.
Madsin · Deus Research Base ↗
Stage 4 · source encounter rules. Reviewed captions; HP triggers are approximate and can be delayed by current actions or stagger. English boss names are lookup labels, not a claim of Global localization.
Madsin · Gelcos · 3:27 ↗
Encounter explanation begins here. Mechanic facts summarized in original English; coordination advice is editorial.
Madsin · Nazmun · 4:46 ↗
Encounter explanation begins here. Mechanic facts summarized in original English; coordination advice is editorial.
Madsin · Atiel · 5:45 ↗
Encounter explanation begins here. Mechanic facts summarized in original English; coordination advice is editorial.