Crimera (5e Creature)
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Medium monstrosity, lawful evil
Charge. If the crimera moves at least 20 feet straight toward a target and then hits it with a bite attack on the same turn, the target takes an extra 3 (1d6) slashing damage.
Multiattack. The crimera makes two attacks, one with its bite and one with its claws.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage.
Claws. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (2d4) slashing damage. If the target is a Medium or smaller creature, it is grappled (escape DC 12). Until this grapple ends, the crimera can attack only the grappled creature and has advantage on attack rolls to do so.
The most common horror to be born from the Crimson, the region surrounding the brain of Cthulhu's lair, a crimera is a mutated arthropod that seeks to consume pure things with unrelenting hunger. Crimera have many-segmented bodies with several sets of paddle-like legs that they use to maneuver, as well as a pair of deadly claws and three knife-like mouthparts designed to tear flesh. They begin as any number of minute organisms, such as ticks or lice, which parasitize the flesh of the Crimson and gradually swell and change into monstrous forms as they feed.