Multiattack

The guardian makes two sword attacks.

Sword

Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 29 (4d10 + 7) slashing damage.

Poison Breath (Recharge 5-6)

The guardian exhales poisonous gas in a 15-foot cone. Each creature in the area makes a DC 18 Constitution saving throw taking 45 (10d8) poison damage on a failure or half damage on a success.