At Vanguards, balanced damage wins the room. Identify each creature, use an effective style and keep their remaining health close enough that none triggers a full reset. If one is already much lower than the others, stop damaging it even when your best weapon could finish it quickly.
This guide covers normal CoX in small teams, with solo adjustments where the job changes. It explains the health percentages, warning spirals and shuffle response. A stronger weapon can make this room harder to control if you use it without checking the other targets.
Identify the three Vanguards before assigning damage
The melee Vanguard has many exposed, flailing tentacles. The ranged Vanguard holds rocks. The magic Vanguard keeps its tentacles tucked away. Learn those shapes rather than identifying them by where they first spawned; the positions change during the encounter.
Use magic against the melee Vanguard, melee against the ranged Vanguard, and ranged against the magic Vanguard as a practical starting arrangement. The target’s attack style tells you what to protect against; it does not mean you should attack it with that same style.
In a trio, assign one person to each target and agree a simple health call. In a duo, decide who flexes to the third target. Solo players must carry all three functional styles and switch to the Vanguard that most needs damage. Nobody should enter assuming another person will automatically cover the unused style.
Check actual weapon speed and maximum hit. A small controlled hit can be more useful than a huge delayed hit when the health bars are close to the reset limit. Keep a fast or lower-hit option if your main weapon frequently overshoots, and reduce unnecessary offensive boosts when that helps control.
Vanguard | How to recognise it | Practical attack / protection |
|---|---|---|
Melee | Many flailing tentacles | Magic damage / Protect from Melee |
Ranged | Tentacles holding rocks | Melee damage / Protect from Missiles |
Magic | Retracted tentacles | Ranged damage / Protect from Magic |
Understand the reset as a percentage gap
The room compares their remaining health relative to maximum health. In groups of four or fewer, the dangerous gap is 40 percentage points; in groups of five or more it is about one third. Do not treat that as “40 damage” or “33 hitpoints” on every scale.
For example, in a small team, targets at 70%, 65% and 60% are comfortably close. Targets at 80%, 75% and 45% need damage on the healthier targets, while the 45% target should be left alone. Hitting the lowest one again moves the encounter towards a reset.
Leave a margin below the limit. Your next maximum hit, a teammate’s queued attack, an already travelling projectile or a thrall can change the bars after you decide to stop. Sitting exactly on the allowed difference is less reliable than keeping all three comfortably grouped.
A warning spiral appears when the gap is approaching the threshold. Treat it as a stop-and-reassess cue. If the limit is exceeded, the Vanguards shuffle and recover to full health, wasting damage and supplies. Another attack into the low target is not the way to fix the warning.
Run a simple team damage loop
Start the assigned target, then look at all three health bars after a short burst rather than tunnel-visioning your own hits. If yours becomes the lowest by a large margin, stop. Tell the other players the percentage and let the higher-health targets catch up.
If another player falls behind, help the high-health target with the appropriate style once the switch is safe. Two people improvising separate target changes at the same time can overcorrect; short calls such as “stop mage, help melee” are easier to execute than everyone independently chasing a different bar.
As all three approach low health, prepare a coordinated finish. Do not rush the first kill while another Vanguard remains much healthier. The room’s success condition is a balanced clear, not winning the damage race against your assigned creature.
The names used in calls should be agreed. “Mage” can mean the magic-attacking Vanguard or the target you attack with magic. Use the same convention throughout the raid, ideally the creature’s own attack style, to avoid a teammate striking the opposite target.
Handle the shuffle without losing the assignment
The Vanguards periodically tuck into their shells and move around the room. Avoid standing in their movement paths, which can deal repeated damage. They cannot be newly targeted while closed, but damage already launched can still arrive and affect the next health comparison.
After they emerge, identify the creature again. In teams you can follow the same assigned style, or stay in an agreed area and switch for the new occupant. Both systems need communication; mixing them causes two people to chase one target and leave another untouched.
Select protection for the enemy now attacking you. A prayer left over from the previous position may no longer match. Protection reduces damage but does not make the room harmless, and the ranged and magic attacks include additional projectiles that can land nearby.
Do not sink Defence-reduction specials into a long-term drain plan here: the Vanguards recover drained stats when they retreat into their shells. Use available damage tools only when the health gap allows the resulting hit. A damage special that forces a full reset has defeated its own purpose.
Solo: manage aggression and choose the healthiest target
Solo changes the workload rather than removing the balance rule. Work around the room’s edge and avoid drawing all three attacks together. Watch where the creatures emerge, select the needed prayer and use the appropriate style on the highest-health target that you can safely engage.
Keep the switches compact. An inventory full of marginal armour upgrades is not helpful if finding the ranged weapon takes several attacks. Place the three weapons predictably and check the off-hand and armour pieces that most affect accuracy.
When your damage is high, use shorter bursts before rechecking. A slow weapon with a large hit is especially easy to overshoot with. You can stop attacking, remove an offensive prayer or choose a lower-hit weapon to create enough margin. None of those choices means the account is undergeared; the mechanic rewards control.
If you repeatedly reset, review the bar just before the damaging hit and any projectile still travelling. The useful lesson is whether the attack was already too large for the gap, not whether the room felt unlucky after all three healed.
Symptom | Correction |
|---|---|
A spiral appears on a target | Stop the low-health target and compare all three bars |
Reset immediately after a shuffle | Account for attacks launched before the shells closed |
Two players hit the same creature unexpectedly | Clarify target names and whether roles follow creatures or positions |
Prayer damage rises after movement | Re-identify the current attacker and change protection |
A premium weapon repeatedly causes resets | Use smaller controlled hits and a wider health margin |
All three attack the solo player | Reposition towards an edge and manage one engagement at a time |
Collect the supplies and keep the next raid controlled
The room supplies useful recovery and combat potions, with an overload (+) guaranteed across the group of three. Check and distribute what dropped before leaving. The supplies can support the remaining raid; repeated resets consume the reserve you were hoping to gain.
Regular Hardcore Ironmen retain status on CoX deaths; Hardcore Group Ironmen lose a life. Death also affects points and raid supplies. For learning, a clean balanced clear is a better milestone than finishing a few seconds faster with a near-reset gap on every shuffle.
Fit this encounter into the complete raid
Use the Chambers of Xeric learner guide for the complete raid, preparation and team expectations. The raids preparation guide helps separate useful upgrades from access requirements.
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