Floor 21
Eureka Orthos • Floors 21–30
Orthodemolisher
Aggro: 
Proximity
HP: 131K
Auto-attack: 2941
Proximity
HP: 131K
Auto-attack: 2941
⚠ Warnings
High damage enrage or self-destruct
High damage enrage or self-destructVulnerabilities: 
| Ability | Potency | Effect |
|---|---|---|
| Assault Cannon |
1100
|
telegraphed line AoE |
|
Self-detonate
|
2000
|
huge pointblank AoE sacrificial enrage; can be LoSed. Used at 30% HP |
Notes:
- Can only be slowed with Arm's Length if transfigured via Pomander of Witching since it doesn't normally do melee auto-attacks
OrthogiantPatrol
Aggro: 
Sight
HP: 131K
Auto-attack: 1468
Sight
HP: 131K
Auto-attack: 1468
Vulnerabilities: 
| Ability | Potency | Effect |
|---|---|---|
| Grand Sword |
170
|
instant (conal AoE?) |
| Exhaust |
3000
|
telegraphed line AoE |
Orthos Wyvern
Aggro: Sight
HP: 131K
Auto-attack: 1024
Sight
HP: 131K
Auto-attack: 1024
Vulnerabilities: 
| Ability | Potency | Effect |
|---|---|---|
| Spiked Tail |
140
|
inflicts stacking poison (physical DoT potency 100 per stack, max 8 stacks, 30s) |
Orthos Brobinyak
Aggro: Sight
HP: 134K
Auto-attack: 3007
Sight
HP: 134K
Auto-attack: 3007
⚠ Warnings
Gaze
GazeVulnerabilities:
| Ability | Potency | Effect |
|---|---|---|
|
Cold Gaze
|
n/a | conal gaze attack; inflicts paralysis (20s) - look away, get behind, or get away. Diminishing returns do NOT apply to this paralysis (it is always 20s) |
| Body Slam |
1200
|
telegraphed pointblank AoE; inflicts knockback. Used immediately after Cold Gaze |
Mimic
Aggro: Proximity
HP: 209K
Auto-attack: 3765
Proximity
HP: 209K
Auto-attack: 3765
Vulnerabilities:
| Ability | Potency | Effect |
|---|---|---|
| Infatuation | n/a | inflicts pox (magic DoT potency 5, 10m); can be interrupted |
| Deathtrap |
4000
|
telegraphed pointblank AoE |
Notes:
- Sometimes found in bronze 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: 703K
Auto-attack: 37K
Sight
HP: 703K
Auto-attack: 37K
Vulnerabilities:
| Ability | Potency | Effect |
|---|---|---|
| Empty Hand |
100
|
instant; also grants permanent stacking vulnerability down (10% per stack, max 8 stacks) to self, unless the damage was fully blocked |
| Genesis |
5000
|
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: 703K
Auto-attack: 37K
Sight
HP: 703K
Auto-attack: 37K
Vulnerabilities: 
| Ability | Potency | Effect |
|---|---|---|
| Circle of Flames |
80
|
instant circle AoE; also grants permanent stacking HP regeneration to self (about 0.2%/3s per stack) |
| Circle Blade |
2500
|
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: 703K
Auto-attack: 37K
Sight
HP: 703K
Auto-attack: 37K
Vulnerabilities:
| Ability | Potency | Effect |
|---|---|---|
| Hard Thrust |
90
|
instant |
| Berserk | n/a | grants permanent stacking damage up to self (10% per stack); can be interrupted |
| Allagan Meteor |
5000
|
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