Echo Cerberus
Echo Cerberus on Sarim RSPS uses magic attacks, recurring lava lines and nine-soul waves. Its solo reward path leads to Fang of the hound, a dagger with Flames of Cerberus and a damaging special attack.
Unlock and enter
Complete Unrequired Antifire, which asks you to kill Cerberus without taking lava-pool damage. Check the task in ::cas, then select Echo Cerberus in the teleport interface.
The repeating attack sequence
| Cue | What happens | Response |
|---|---|---|
| Regular attacks | Cerberus uses magic between specials. | Protect from Magic between the attacks that need a different response. |
| Every fourth attack: “Grrrrrrrrrr” | Two lava lines travel toward your saved position. Their tiles remain dangerous for the rest of the kill. | Move away from the saved tile and plan around the lines already on the floor. |
| Every twelfth attack: howl and souls | A nine-soul wave takes priority over the lava attack. There is no additional health-threshold wave. | Read each soul and use its matching protection prayer. |
| Soul attack | Correct prayer blocks the hit. An unprotected soul deals 30 damage. | Match Protect from Missiles, Magic or Melee to each soul; do not assume the previous wave’s order. |
| Standing in lava | Lava deals 15–18 damage every two ticks. | Keep moving onto clear tiles, including while changing prayers. |
The wave is three shuffled groups of ranged, magic and melee souls. All nine matter. Soul attacks are staggered, so stay focused after the first group has passed. Cerberus also caps an individual incoming hit at 120 damage.
Solo drop rates
| Reward | Amount or chance |
|---|---|
| Coin floor | 350,000 every kill |
| Additional coins | 1,500,000 at 1 in 26 |
| Houndfire fang | 1 in 256 |
| Fang of the hound | 1 in 1,024, separate finished-item roll |
The ordinary boss’s guaranteed drops are included once, alongside a normal potential-drop roll. There is a separate 25% chance of one extra normal potential-drop roll. That extra roll does not increase the dedicated Echo component or finished-item rates below.
Fang of the hound recipe
Houndfire fang + Abyssal dagger + Primordial crystal → Fang of the hound. The recipe uses the crystal, not Primordial boots.
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.
The dagger can add Flames of Cerberus to successful normal NPC hits. Its 50%-energy special adds guaranteed flames after a damaging primary hit and a three-part burn. Read the damage rules and conditions.
Make room for the soul wave
- Use a prayer layout you can switch without losing track of your movement.
- Avoid filling your next standing area with lava. Old lines remain dangerous.
- Carry enough food and Prayer restoration for repeated waves; a fast start does not guarantee a soul-free kill.
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.