Magical Beast (Fire) · 16 hexes · SM +3 Pyrohydra [Monster Manual, page 156]
Attributes
ST35
DX11
IQ2
HT13
HP35
Will12
Per12
FP13
Basic Speed6
Basic Move6
Dodge10
DR3
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| FangsFangs (13): thrust 4d+2 impaling (KYOS: 7d+2 impaling), Reach C-2. | 13 | thrust 4d+2 impaling (KYOS: 7d+2 impaling) | C-2 |
| Breathe FireBreathe Fire (13): The hydra breathes out a blast of fire, dealing thrust 4d-1 burning damage (KYOS: 5d) as large-area injury. This is a cone attack that uses rules from Area and Spreading Attacks (pp. B413-414). The cone is 1-yard wide and has a length of 7 yards (ST/5). Each use costs 2 FP. It is possible to make the cone wider by using the rules from Cones of Power (GURPS Dungeon Fantasy Monsters 4: Dragons, p. 10). | 13 | The hydra breathes out a blast of fire, dealing thrust 4d-1 burning damage (KYOS: 5d) as large-area injury. This is a cone attack that uses rules from Area and Spreading Attacks (pp. B413-414). The cone is 1-yard wide and has a length of 7 yards (ST/5). Each use costs 2 FP. It is possible to make the cone wider by using the rules from Cones of Power (GURPS Dungeon Fantasy Monsters 4: Dragons, p. 10) | — |
Traits (14)
- Amphibious
- Combat Reflexes
- Discriminatory Smell
- Extra Attack 2
- Extra Legs (Four Legs)
- Horizontal
- Immunity to Noxious Fire Effects
- Infravision
- Long Neck 3
- Night Vision 5
- No Fine Manipulators
- Peripheral Vision
- Temperature Tolerance 3 (Hot)
- Wild Animal
Skills (4)
- 13Brawling
- 13Innate Attack (Breath)
- 12Survival (Swampland)
- 12Tracking
Notes
- GCS ancestry draft: gcs/pyrohydra.gct
- Source template total: 631 points.
- Library-rebuilt template total: 631 points.
- CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
- Review attacks, special abilities, encounter frequency, treasure, grappling, and GCS modifiers before approval.
- Size 16 hexes; Weight 4,000 lbs.
Encounter rating
CER76
Offense38
Protection38
Threat tiermajor
Appearing1
Wandering2
Tags
- srd-3-5
- magical-beast
- fire
GCS v5 downloads
Where this one came from
- Source record
- Pyrohydra [Monster Manual, page 156]
- Source system
- gurps_4e_fan_conversion / author_permission
- Released under
- cc_by_4_0
- Conversion
- 0.2.0-reviewed
- Review status
- approved
- Credit
- Original GURPS conversion by Enraged Eggplant, from Monsters (May 11, 2024); adapted and republished with permission.
- GCS ancestry draft: gcs/pyrohydra.gct
- Source template total: 631 points.
- Library-rebuilt template total: 631 points.
- CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
- CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR 38, PR 38, CER 76, threat tier major.
- Encounter metadata derived (solitary): average number appearing 1, wandering weight 2. Encounter metadata derived for 0.2.0 from the reviewed threat tier and creature class (appearing: minor 4 / standard 2 / major 1 / severe 1, forced to 1 for solitary classes — including swarms, which are a single multi-body creature — and raised to 6 for gregarious minor creatures; wandering weight: minor 4 / standard 3 / major 2 / severe 1). The fan-conversion source states no appearing-in-numbers or wandering values, so these are derived, not source mechanics.
- Lair, treasure, and grappling remain unpopulated in 0.2.0 by package policy: the authorized fan-conversion source states no lair, treasure, or grappling values, and review declines to invent them. See review/policy/0.2.0-empty-field-policy.md.
- Review approved by automated-mechanical-review on 2026-07-26 (batch ee-2026-07-26-b4-special-mechanics); GCS fidelity check passed, DOA playability check passed.
- Special-mechanics record. Mechanics the CER path cannot price are named per record in review/reports/cer-audit.md rather than folded into the number, and encounter counts are capped where a save-or-disable attack is present.
Enraged Eggplant GURPS monster conversions; used, adapted, and republished with unrestricted permission from the author. Portrait and tokens are AI-generated original art. Sources and credits.