Core Spawn Crawler

Small Aberration - Chaotic Evil
Armor Class: 12
Hit Points: 21 (6d6)
Speed: 30ft
STR - 7, DEX - 14, CON - 10, WIS – 12, INT - 9, CHA - 6
Skills: Perception +5
Damage Immunities: Psychic
Condition Immunities: Blinded
Senses: Blindsight 30ft (blind beyond this radius), Tremorsense 60ft, Passive Perception 15
Languages: Understands Deep Speech but can't speak
Challenge: 1
Traits
Pack Tactics - The crawler has advantage on an attack roll against a creature if at least one of the crawler's allies is within 5 feet of the creature and the ally isn't incapacitated.
Actions
Multiattack - The crawler makes four attacks: one with its bite, two with its claws, and one with its tail.
Bite - Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 4 (1d4 + 2) piercing damage and the target must succeed on a DC: 11 Wisdom saving throw or become frightened until the start of the crawler's next turn.
Claws - Melee Weapon Attack: +4 to hit, reach 15 ft., one target. Hit: 4 (1d4 + 2) slashing damage.
Tail - Melee Weapon Attack: +4 to hit, reach 15 ft., one target. Hit: 5 (1d6 + 2) piercing damage.