Outsider (Chaotic, Evil) · 3 hexes · SM +1 Abyssal Greater Basilisk [Monster Manual, page 24]
Attributes
ST18
DX8
IQ6
HT13
HP18
Will10
Per11
FP13
Basic Speed5.25
Basic Move3
Dodge8
DR3
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| Sharp TeethSharp Teeth (10): thrust 1d+2 cutting (KYOS: 3d-1 cutting), Reach C. | 10 | thrust 1d+2 cutting (KYOS: 3d-1 cutting) | C |
| Petrifying GazePetrifying Gaze (10): A basilisk’s petrifying gaze spreads out in a cone 15 yards long and 15 yards wide at the end. It can select who is affected; potential victims must be looking at it. For every target, there is a Quick Contest between the basilisk’s Will (minus a range penalty taken from the Speed/Range Table) and each target’s HT. If the basilisk wins, the target is petrified. (The distinction between “paralyzed” and “petrified” generally works in their victims’ favor – e.g., they won’t starve – so the basilisk does not pay extra for this.) Someone looking at a reflection of a basilisk is not affected by its gaze. Fighting while looking in a mirror is at a -5 penalty; attacks made with closed eyes are at -10. Petrification can be removed with Remove Curse or Stone to Flesh. This attack also affects insubstantial beings. | 10 | A basilisk’s petrifying gaze spreads out in a cone 15 yards long and 15 yards wide at the end. It can select who is affected; potential victims must be looking at it. For every target, there is a Quick Contest between the basilisk’s Will (minus a range penalty taken from the Speed/Range Table) and each target’s HT. If the basilisk wins, the target is petrified. (The distinction between “paralyzed” and “petrified” generally works in their victims’ favor – e.g., they won’t starve – so the basilisk does not pay extra for this.) Someone looking at a reflection of a basilisk is not affected by its gaze. Fighting while looking in a mirror is at a -5 penalty; attacks made with closed eyes are at -10. Petrification can be removed with Remove Curse or Stone to Flesh. This attack also affects insubstantial beings | — |
Traits (20)
- Bad Temper (12)
- Born Biter 2
- Cold-Blooded (50°)
- Extra Legs (Eight Legs)
- Glowing Eyes (Reduce darkness penalties for targeting eyes by -5)
- Gluttony (12)
- Horizontal
- Infravision
- Magic Resistance 2 (Improved)
- Night Vision 5
- No Fine Manipulators
- Peripheral Vision
- Reduced Consumption 4 (Food Only)
- Regrowth
- Restricted Diet (Carnivore)
- Scales
- See Invisible (Ethereal; Completely Exclusive; Magical)
- Ultravision
- Universal Digestion (Matter Eater)
- Wild Animal
Skills (2)
- 10Brawling
- 10Tracking
Notes
- GCS ancestry draft: gcs/abyssal-greater-basilisk.gct
- Source template total: 137 points.
- Library-rebuilt template total: 137 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 3 hexes; Weight 800 lbs.
Encounter rating
CER38
Offense24
Protection14
Threat tierstandard
Appearing2
Wandering3
Tags
- srd-3-5
- outsider
- chaotic
- evil
GCS v5 downloads
Where this one came from
- Source record
- Abyssal Greater Basilisk [Monster Manual, page 24]
- 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/abyssal-greater-basilisk.gct
- Source template total: 137 points.
- Library-rebuilt template total: 137 points.
- CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
- Issue #5: 0 special ability construction(s) restored and 1 annotated with the source's stated cost. 1 save-or-disable construction(s) are scored through the affliction term at the source's stated point cost, or at Binding ST where the source builds the ability as a Binding.
- CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR 24, PR 14, CER 38, threat tier standard.
- Conversion baseline reported OR 9, PR 14, CER 23 (tier minor). The reviewed values come from the consumer CER implementation, which rounds damage once after the damage-type multiplier and credits ranged accuracy; the conversion baseline ceilinged the damage base first and ignored range.
- Encounter metadata derived (default): average number appearing 2, wandering weight 3. 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.