Floor 54
Eureka Orthos • Floors 51–60
| ! | Enemy | Warnings |
|---|---|---|
| Orthos Rockfin P | ||
| Orthos Ymir | ||
| Orthos Ice Sprite | ||
| Orthos Banshee | ||
| Orthos Leech | ||
| Orthos Yabby P | ||
| Mimic | ||
| Demi-Cochma | ||
| Lamia Queen | ||
| Meracydian Clone |

Orthos RockfinPatrol
Aggro:
Sight
HP: 222K
Auto-attack: 6871
⚠ Warnings
Unclassified dangerous
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
| Jaws |
|
instant |
|
Aqua Spear
|
|
telegraphed charge attack; can be LoSed (and will otherwise kill you) |

Orthos Ymir
Aggro:
Sight
HP: 227K
Auto-attack: 7129
⚠ Warnings
Unclassified dangerous
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
|
Gelid Charge
|
n/a | grants counterattack (magic potency 4000, 6s) - disengage IMMEDIATELY or the counterattacks WILL kill you |
Notes:
- Gelid Charge only counters physical attacks, so casters can keep casting as usual - just be careful not to auto-attack
Orthos Ice Sprite
Aggro:
Sight
HP: 206K
Auto-attack: 5818
⚠ Warnings
High damage enrage or self-destruct
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
|
Hypothermal Combustion
|
|
untelegraphed pointblank AoE used AFTER DEATH - get away after it dies |
Notes:
- Can only be slowed with Arm's Length if transfigured via Pomander of Witching since it doesn't normally do melee auto-attacks
- If petrified via Doga Demiclone when it dies, no explosion happens

Orthos Banshee
Aggro:
Proximity
HP: 213K
Auto-attack: 6187
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
| Whisper of Our Discontent | ? | telegraphed conal AoE |

Orthos Leech
Aggro:
Sight
HP: 218K
Auto-attack: 4919
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
| Acid Mist |
|
instant pointblank AoE; inflicts vulnerability up (10% per stack, 20s); 12 second cooldown |
Notes:
- Acid Mist is fairly easy to avoid by kiting

Orthos YabbyPatrol
Aggro:
Sight
HP: 249K
Auto-attack: 8037
⚠ Warnings
Draw-in, knockback, heavy, or other movement-affecting status
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
|
Scuttling Skewer
|
|
instant; inflicts heavy (4s) which cannot be removed with Esuna |
| Tail Screw |
|
telegraphed circle AoE; reduces players' HP to 1% of max. Used immediately after Scuttling Skewer if any players are heavied |
Notes:
- If you shield all the damage from Scuttling Skewer, the heavy will also be blocked and Tail Screw will be skipped

Mimic
Aggro:
Proximity
HP: 312K
Auto-attack: 7456
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
| Infatuation | n/a | inflicts pox (magic DoT potency 5, 10m); can be interrupted |
| Deathtrap |
|
telegraphed pointblank AoE |
Notes:
- Sometimes found in silver chests
- Protomander of Alteration transforms all enemies in a random room on the next floor into either mimics or mandragoras

Demi-Cochma
Aggro:
Sight
HP: ?
Auto-attack: ?
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
| Empty Hand |
|
instant; also grants permanent stacking vulnerability down (10% per stack, max 8 stacks) to self, unless the damage was fully blocked |
| Genesis |
|
huge pointblank AoE sacrificial enrage; used below 10% HP |
Notes:
- Dread beast
- Immune to knockback, which means it will not die to the Rotosmash ability from the Protomander of Dread
- Grants 30m vulnerability down buff (10%) upon defeat

Lamia Queen
Aggro:
Sight
HP: ?
Auto-attack: ?
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
| Circle of Flames |
|
instant circle AoE; also grants permanent stacking HP regeneration to self (about 0.2%/3s per stack) |
| Circle Blade |
|
telegraphed pointblank AoE |
| Petrifaction | n/a | huge 360 degree gaze inflicting stone curse (1m); also affects enemies. Used every 30 seconds when below 90% HP |
Notes:
- Dread beast
- Immune to knockback, which means it will not die to the Rotosmash ability from the Protomander of Dread
- Grants 30m regen buff upon defeat

Meracydian Clone
Aggro:
Sight
HP: ?
Auto-attack: ?
Vulnerabilities: 




| Ability | Potency | Effect |
|---|---|---|
| Hard Thrust |
|
instant |
| Berserk | n/a | grants permanent stacking damage up to self (10% per stack); can be interrupted |
| Allagan Meteor |
|
huge (20y) pointblank AoE enrage; used below 50% HP |
Notes:
- Dread beast
- Immune to knockback, which means it will not die to the Rotosmash ability from the Protomander of Dread
- Grants 30m damage up buff (10%) upon defeat