Blighted Scarab Colossus

Hive Mind. The Blighted Scarab Colossus shares a hive mentality with other Blighted creatures, allowing them to coordinate attacks. If one Blighted creature is aware of a hostile creature, all others in the hive mind are also aware.

Blighted Scourge. Natural weapon attacks by the Blighted Scarab Colossus can infect creatures with the Blighted Scourge. A creature hit by the Colossus’s attack must succeed on a DC 19 Constitution saving throw or contract the Blighted Scourge.

Aura of Decay. The Blighted Scarab Colossus radiates an aura of decay in a 30-foot radius. Non-Blighted creatures that start their turn in this area must succeed on a DC 19 Constitution saving throw or take 21 (6d6) necrotic damage and have their movement speed reduced by 10 feet until the end of their next turn.

Summon Swarm (Recharge 5-6). As an action, the Blighted Scarab Colossus can summon a swarm of Blighted beetles to harass its enemies. The swarm appears in an unoccupied space within 60 feet and acts on the Colossus’s turn, dealing 10 3d6 blighted energy damage per round to any creature in its space.

Multiattack. The Blighted Scarab Colossus makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 29 (4d10 + 8) piercing damage. If the target is a creature, it must succeed on a DC 19 Constitution saving throw or be infected with the Blighted Scourge.

Claw. Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 23 (3d8 + 8) slashing damage. If the target is a creature, it must succeed on a DC 19 Constitution saving throw or be knocked prone.

Blight Eruption (Recharge 5-6). The Blighted Scarab Colossus expels a burst of necrotic energy in a 20-foot radius. Each creature in that area must make a DC 19 Dexterity saving throw, taking 45 10d8 blighted energy damage on a failed save, or half as much on a successful one. Creatures that fail the save are also infected with the Blighted Scourge.

The Blighted Scarab Colossus can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time, and only at the end of another creature’s turn. The Blighted Scarab Colossus regains spent legendary actions at the start of its turn.

• Claw Attack. The Blighted Scarab Colossus makes one claw attack.
• Terrifying Presence (Costs 2 Actions). Each creature within 30 feet of the Colossus that can see it must succeed on a DC 18 Wisdom saving throw or be frightened until the end of its next turn.
• Blighted Carapace (Costs 3 Actions). The Blighted Scarab Colossus strengthens its blighted shell, gaining resistance to all damage types until the start of its next turn.