Abyssal Greater Basilisk

Outsider (Chaotic, Evil) · 3 hexes · SM +1 Abyssal Greater Basilisk (Enraged Eggplant; answers SRD 3.5)

A heavier, meaner basilisk, running on eight legs under layered charcoal and bruised-purple scales with iron-hard spines along its back and a barbed tail behind. Four ember-red eyes sit in one broad head, and meeting them is as fatal as meeting the smaller kind's two. Magic slides off it.

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, Reach C.	10	thrust 1d+2 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

• ↓ Character sheet (.gcs)Open directly in GCS
• ↓ Ancestry template (.gct)Apply to any character

Where this one came from

Source record

Abyssal Greater Basilisk

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.

Description

Written by Dungeons on Automatic, released under cc_by_4_0

• 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.
• Description text is original Dungeons on Automatic prose written from this record's own converted statistics and from the project's art direction for the creature. It is not derived from the authorized fan-conversion source, which states no creature descriptions, and not from any SRD. It carries its own authorship and CC BY 4.0 terms in the description field. See review/policy/description-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.