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.
Older footage is retained for its encounter explanations; it is not presented as a fresh ten-player clear.
Entry, difficulty & preparation
Group up before triggering each laser corridor. Destroy the mirror barrier with fast direct hits while the wall approaches; do not assume pet damage counts.
| Check | What to use |
|---|---|
| Mode covered | Hard |
| 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 · Expedition rules ↗ · Madsin · Hall of Illusion ↗
Source version: read before assigning players
The linked encounter footage uses the older four-player party or eight-player raid format. Current Korean parties and Sanctuary raids have expanded. The mechanics below describe that footage; fixed target counts, assignments and HP triggers must be matched to the encounter you enter. Do not copy an eight-slot raid diagram onto a ten-player raid without checking the live markers. Current NC entry and resurrection rules take precedence over old video advice.
Evidence: NC · Expedition rules ↗ · Madsin · Hall of Illusion ↗
Nazarak
Agree cardinal ghost assignments before pulling. Do not carry an unresolved ghost back into the group’s safe spot.
| Tell / phase | Your response | Why it matters |
|---|---|---|
| Ghosts / eyes and white circles | Lead your pursuing ghost into a distinct white circle, then return close to the boss. | Unresolved ghosts fear nearby players; the following outer-area cast is lethal. |
| Single ghost plus a spread marker | Ghost target uses the white circle; spread target moves away from teammates. | These can be different players and require separate responses. |
| Smoke dash and moving smoke ball | Leave their paths and retarget after the boss reappears. | The moving boss remains a damaging hitbox. |
Evidence: Madsin · Nazarak · 0:17 ↗
Glassvein
Keep one clear exit lane. The mechanic is easier to solve before the pull than after it.
| Tell / phase | Your response | Why it matters |
|---|---|---|
| Personal red circles before centre pull | Place pools away from the future escape route. | Pools pull players into their centre. |
| Surging Insanity after the pull | Dodge outward beyond the lethal area, avoiding the pools you just placed. | Poor earlier placement makes the escape fail. |
| Crystal proximity mines | Trigger carefully if needed, leave the small explosion and jump the expanding ring. | Unplanned mine activations can overlap other dodges. |
Evidence: Madsin · Glassvein · 4:00 ↗
Nathara
Assign reflection lanes and balance the two clone teams before the pull. Do not plan to skip the final clone phase with damage.
| Tell / phase | Your response | Why it matters |
|---|---|---|
| Light of Annihilation around 55% / 25% | Pick up a mirror fragment and use its guard facing an incoming light projectile to reflect it. | Body-blocking without guard splits the projectile and threatens several outer crystals. |
| Crystals turn red | Track failures and prepare recovery. The source wipes at three red crystals. | A late unsafe interception can be worse than letting one projectile through. |
| Clone split around 10% | Numbered targets move to opposite ends; split damage and bring both clones low together. | Killing one starts a short timer to kill the other. |
| Clone kill timing | Finish both within the second cast; the source gives about five seconds after the first dies. | A large health mismatch causes a wipe. |
| Beam / triangle hits on arena crystals | Move out of the secondary boomerang paths as well as the original attack. | Crystal reactions create additional hazards. |
Evidence: Madsin · Nathara · 5:31 ↗
Difficulty changes & encounter details
The older Hard source uses four-player ghost and clone assignments. Current party size is different; preserve the mechanic goals while checking actual marked targets.
Evidence: Madsin · Hall of Illusion ↗
Tank, healer & DPS assignments
Strategy recommendationSuggested preparation for this encounter. These assignments are editorial recommendations based on the mechanics above.
| Role | Assignment |
|---|---|
| Tank | Keep boss attacks from sweeping through unnecessary crystals. |
| Healer / support | Prepare recovery after an imperfect reflection phase and keep both clone teams supported. |
| DPS | Use controlled reflections, then balance clone health rather than racing one side. |
Evidence: Madsin · Hall of Illusion ↗
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 · Expedition rules ↗ · Madsin · Hall of Illusion ↗
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 · Expedition rules ↗
Current Korean rules, read 29 September 2026. Admission and reward rules are separate from the older encounter footage.
Madsin · Hall of Illusion ↗
Hard · historical 4/8-player footage. 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 · Nazarak · 0:17 ↗
Encounter explanation begins here. Mechanic facts summarized in original English; coordination advice is editorial.
Madsin · Glassvein · 4:00 ↗
Encounter explanation begins here. Mechanic facts summarized in original English; coordination advice is editorial.
Madsin · Nathara · 5:31 ↗
Encounter explanation begins here. Mechanic facts summarized in original English; coordination advice is editorial.