Basilosaurus
This immense primeval whale has a sleek body that looks more serpentine than mammal, and jaws filled with sharp teeth.
Basilosaurus (CR 12)
Gargantuan AnimalAlignment: Neutral
Initiative: +5
Senses: Blindsense 60 feet, Low-Light Vision; Perception +25
Speed: Swim 40 feet
Space: 20 feet
Defense
Armor Class: 27, touch 7, flat-footed 26 (+1 Dex, +20 natural, -4 size)Hit Points: 161 (17d8+85)
Saving Throws: Fort +17, Ref +11, Will +7
Offense
Melee: bite +23 (4d6+15/19-20 plus Grab), tail slap +18 (2d8+7)Reach: 20 feet
Special Attacks: Swallow Whole (4d6+15 bludgeoning damage, AC 20, 16 hp)
Statistics
| Str | Dex | Con | Int | Wis | Cha |
|---|---|---|---|---|---|
| 41 (+15) | 12 (+1) | 21 (+5) | 2 (-4) | 11 (+0) | 6 (-2) |
CMB +31
CMD 42
Feats: Diehard, Endurance, Great Fortitude, Improved Critical (bite), Improved Initiative, Iron Will, Skill Focus (Perception), Vital Strike
Skills: Perception +25, Swim +31
- Racial Modifiers: +4 Perception
Special Qualities: Hold Breath
Special Abilities
NONEEcology
Environment: Any OceansOrganization: solitary, pair, or pod (3-10)
Treasure: none
Despite their saurian name, basilosauruses are in fact oceanic mammals, and at 60 feet in length are highly formidable beasts of the sea. In appearance, they resemble greatly elongated whales, but with long, toothed jaws resembling an alligator's. Inexperienced observers often confuse a basilosaurus with a sea serpent or water orm- and in all fairness, in the aftermath of a basilosaurus attack on an unsuspecting ship, such distinctions are largely academic anyway.
A basilosaurus relies as much on vision as echolocation to find prey, but sometimes mistakes smaller ships for food. Basilosauruses have few natural predators; only supernatural monsters like krakens, thalassic behemoths, and the largest of sea serpents can truly threaten a fully grown one.
Basilosaurus Companions
Starting Statistics: Size Medium; Speed swim 40 ft.; AC +1 natural armor; Attack bite (1d4), tail slap (1d4 Ability Scores Str 11, Dex 14, Con 12, Int 2, Wis 14, Cha 6; Special Qualities low-light vision, hold breath.
7th-Level Advancement: Size Large; AC +2 natural armor; Attack bite (1d6), tail slap (1d6 Ability Scores Str +8, Dex -2, Con +4; Special Qualities blindsense 60 ft.