Coeurl

Avoidance. If the coeurl is subjected to an effect that allows it to make a saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.

Keen Smell. The coeurl has advantage on Wisdom (perception) checks that rely on smell.

Pack Tactics. The coeurl has advantage on attack rolls against a creature if at least one of the courl's allies is within 5 feet of the creature and the ally isn't incapacitated.

Pounce. If the coeurl moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 17 Strength saving throw or be knocked prone. If the target is prone, the coeurl can make one bite attack against it as a bonus action.

Multiattack. The coeurl makes three attacks with its bite, claw or tentacles.

Bite. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 11 (1d10 + 5) piercing damage plus 6 (1d10) lightning damage.

Claw. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 5) slashing damage.

Tentacle. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 9 (1d6 + 5) bludgeoning damage plus 11 (2d10) lightning damage, and the creature must succeed on a DC 17 Constitution saving throw or be paralyzed until the end of its next turn.

Lightning Bolt (Recharge 5–6). The coeurl unleashes a stroke of lightning in a line 100 feet long and 5 feet wide. Each creature in the line must make a DC 17 Dexterity saving throw, taking 36 (12d6) lightning damage on a failed save, or half as much damage on a successful one.

Parry. The coeurl adds 3 to its AC against one melee attack that would hit it. To do so, it must see the attacker.