Armor Class 18 (natural armor)
Hit Points 65 (10d8 + 20)
Speed 30 ft., fly 40 ft., climb 30 ft.
Saving Throws CON +4, WIS +4
Skills Insight +4, Nature +3, Religion +3
Senses darkvision 60 ft., passive Perception 12
Languages Common, Kraul
Challenge 4
Feed on Death. When a creature within 30 feet of the kraul drops to 0 hit points, the kraul or another creature of its choice within 30 feet of it gains 5 (1d10) temporary hit points, provided the kraul isn't incapacitated.
Hive Mind. The kraul is immune to the charmed and frightened conditions while within 30 feet of at least one other kraul.
Pack Tactics. The kraul has advantage on an attack roll against a creature if at least one of the kraul's allies is within 5 feet of the creature and the ally isn't incapacitated.
Spider Climb. The kraul can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Multiattack. The kraul makes one attack with its quarterstaff and casts one of its spells with a casting time of 1 action.
Quarterstaff. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage, or 7 (1d8 + 3) bludgeoning damage if used with two hands.
Guildmaster's Guide to Ravnica, p. 214