Echo Dagannoth Kings
The Echo Dagannoth Kings on Sarim RSPS share 1,800 Hitpoints. Only one King can take damage before enrage. Their dedicated component and finished-item rolls count per completed trio, so one King is not three separate chances at Devil’s element.
Unlock and enter
Complete Toppling the Diarchy: kill Dagannoth Rex and one other Dagannoth King at the exact same time. Check your Combat Achievement record, then select Echo Dagannoth Kings in the teleport interface.
Follow the target and the attack rhythm
| Mechanic | What happens | Response |
|---|---|---|
| Opening target | Supreme starts vulnerable; Rex and Prime are protected. | Start on Supreme and watch the overhead icons. |
| Every 250 damage before enrage | Vulnerability rotates Supreme → Rex → Prime → Supreme. | Change target when the protection icons rotate. |
| Attack order | The initial five-tick cycle is Prime (magic), Supreme (ranged), Rex (melee), then two idle ticks. | Use the incoming attacks to keep your prayer rhythm. Do not confuse attack order with vulnerable-target order. |
| Cave rumble | Spinolyps launch spines; one targets your saved tile and others target the arena. They leave poison pools. | Move off the saved tile and keep track of the floor. Spinolyps are hazards, not targets. |
| 350 HP or lower | All three Kings lose protection. Targeted poison attacks repeat every four ticks after Rex’s attack starts the enrage cadence. | Damage any King while maintaining prayer and movement. |

Standing in a poison pool deals 6–7 damage each tick and can poison you. The shared health bar reaches zero once; all three Kings then die as part of the same completion.
Count the rewards per completed trio
| Reward | Amount or chance | Counting unit |
|---|---|---|
| Coin floor | 200,000 | Each King; 600,000 total per trio |
| Additional coins | 750,000 at 1 in 26 | Completed trio |
| Elemental pact sigil | 1 in 160 | Completed trio |
| Devil’s element | 1 in 768 | Completed trio, separate roll |
| Ordinary boss loot | Each King’s corresponding normal table | Each King, including its separate 25% extra potential-roll chance |
The trio is the unit for Pact drops. The sigil and Devil’s element rolls happen once when all three King rewards have been processed. Do not multiply their listed chance by three. Starting a new solo instance resets the completion counter.
Devil’s element recipe
Elemental pact sigil + Mage’s book + Tome of fire + Tome of water → Devil’s element. The recipe accepts the charged or empty version of each tome.
A component is an upgrade attempt. The equipment recipe has a 50% base success rate, increased by your donor rank. A failed attempt consumes the Echo component and keeps the listed equipment ingredients. A successful attempt consumes both. See the complete upgrade rules before crafting.
Devil’s element boosts modern elemental spells against NPCs. See the actual damage and accuracy conditions rather than assuming every spell receives the bonus.
Practice two separate sequences
- Remember the target order : Supreme → Rex → Prime.
- Remember the incoming attack order : magic → ranged → melee.
- Watch the cave rumble and the saved tile while switching target. During enrage, keep moving even though the protection puzzle has ended.
About this reference
Encounter and reward details were reviewed against Sarim’s current game source on September 9, 2026. This page describes the solo Echo teleport. Forsaken Trials uses a separate encounter sequence and reward system. Check the in-game teleport, Combat Achievements and Sarim Hub when planning your next trip.