Blighted Kraken

Blighted Regeneration: The Kraken regains 20 hit points at the start of each of its turns if it has at least 1 hit point. This regeneration does not function for 1 round if the Kraken takes radiant damage.

Hive Mind. The Blighted Kraken shares a telepathic connection with other Blighted creatures. If one Blighted creature is aware of a hostile creature, all in the hive mind are also aware.

Death Burst. When the Blighted Kraken drops to 0 hit points, it releases a destructive burst of blighted energy. Each creature within 30 feet must make a DC 21 Constitution saving throw, taking 40 (11d6) blighted energy damage on a failed save, or half as much on a successful one. Creatures that fail the saving throw are also infected with the Blighted Scourge.

Aura of Blighted Depths. The Blighted Kraken radiates an aura of corruptive energy in a 20-foot radius. Creatures that start their turn within this area must make a DC 21 Wisdom saving throw or take 14 (4d6) blighted energy damage and have their movement speed halved until the start of their next turn. Blighted creatures are immune to this effect.

Multiattack. The Blighted Kraken makes three Tentacle attacks, or two Tentacle attacks and one Bite.

Tentacle. Melee Weapon Attack: +15 to hit, reach 30 ft., one target. Hit: 21 (3d8 + 8) bludgeoning damage, and the target is grappled (escape DC 21). Until this grapple ends, the target is restrained.

Bite. Melee Weapon Attack: +15 to hit, reach 5 ft., one target. Hit: 28 (4d10 + 8) piercing damage.

Corrupted Wave (Recharge 5–6). The Blighted Kraken releases a wave of blighted energy in a 60-foot cone. Each creature in that area must make a DC 21 Dexterity saving throw, taking 66 (12d10) blighted energy damage on a failed save, or half as much on a successful one. Creatures that fail the saving throw are also pushed back 20 feet and stunned until the end of their next turn.

The Blighted Kraken 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 Kraken regains spent legendary actions at the start of its turn.

• Tail Swipe. The Kraken makes one Tail attack.
• Tentacle Slam (Costs 2 Actions). The Kraken slams a creature grappled by it into a solid surface, dealing 21 (3d8 + 8) bludgeoning damage.
• Summon Blighted Sea Creatures (Costs 3 Actions). The Kraken summons 1d4 Blighted Sharks that last for 1 hour or until destroyed. The summoned creatures act on the Kraken's initiative but cannot use Blighted Scourge.