Sources
CR
Type
Size
Alignment
Movement

Category 3 Krasis

Huge Monstrosity, Unaligned

Armor Class 16 (natural armor)
Hit Points 287 (25d12 + 125)
Speed 40 ft.
STR
23
+6
DEX
12
+1
CON
21
+5
INT
2
-4
WIS
13
+1
CHA
8
-1
Senses passive Perception 11
Languages
Challenge 16 (15,000 XP)

Traits

Amphibious. The krasis can breathe air and water.

Actions

Multiattack. The krasis makes three attacks: one with its bite, one with its claws, and one with its tail.

Bite. Melee Weapon Attack: +11 to hit, reach 10 ft., one creature. Hit:27 (6d6 + 6) piercing damage.

Claws. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit:22 (3d10 + 6) slashing damage.

Tail. Melee Weapon Attack: +11 to hit, reach 15 ft., one target. Hit:33 (6d8 + 6) bludgeoning damage. If the target is a creature, it must succeed on a DC 19 Strength saving throw or be knocked prone.

Lore

In the deep sinkholes that serve as laboratories and guildhalls for the Simic Combine, biomancers employ a combination of magic and scientific method to create novel life forms. They coax new morphologies from existing creatures or combine traits from multiple organisms into one, producing the creatures known as krasis. Some krasis are unique creatures that can't reproduce. A few multiply and become part of the guild's standard menagerie.