Limited telepathy. he can magically transmit simple messages and images to any creature within 120 feet of him that can understand a language. This form of telepathy does not allow the receiving creature to respond telepathically.

Unlimited Evolution. If detan is exposed to 1 element for more than 7 rounds, evolves acquiring resistance to said element, and the combat extends for 13 rounds, develops immunity to this element.

Aberrant terrain. The ground in a 10 foot radius around the mouth and tentacles is difficult terrain as a trap. Each creature that begins its turn in that area must succeed on a DC 16 Strength saving throw or reduce its speed to 0 until the start of its next turn.

Parasite Resistance (3/day). If he fails a saving throw, he can choose to succeed instead.

Multi attack. makes three attacks: one with its bite and two with its tentacles.

bite. Melee Weapon Attack +10. 1d20 + 10, to hit, reach 5 feet, a target takes 2d8 + 5. If the target is a creature, it must succeed on a DC 19 Constitution saving throw against a disease or be poisoned until the disease is cured. Every 24 hours that have elapsed, the target must repeat the saving throw, reducing its Hit Point Maximum by 5 and taking 1d10 damage on a miss. The target dies if the disease reduces its hit point maximum to 0. This reduction to the target's hit point maximum lasts until the disease is cured.

claw. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 5) slashing damage.

Tentacle. Melee Weapon Attack +10. 1d20 + 5 to hit with a range of 10 feet, one target. 1d8 + 5 bludgeoning damage. If the target is Medium or smaller, it is grabbed (DC 19 escape) and restrained until the grab ends. Detano has four tentacles, each of which can grab a target.

Take Lives. As a bonus (special) action, Detano can extract 1d10 + Life Constitution modifier from the enemy and heal himself as long as the target is stunned or reduced to 0 feet of movement.

Spell reflection. If the Detane makes a successful saving throw against a spell, or a spell attack fails, the spectator can choose another creature (including the spellcaster) that he can see within 30 feet of it. The spell targets the chosen creature in the spectator's place. If the spell forced a saving throw, the chosen creature makes its own save. If the spell was an attack, the attack roll is re-rolled against the chosen creature.

A-096 Detano can perform 3 legendary actions, choosing from the following options. Only one legendary action option can be used at a time, and only at the end of another creature's turn does it regain the legendary actions spent at the start of its turn.

Tentacle strike. hits creatures grappling with each other or on a solid surface. Each creature must succeed on a DC 19 Constitution saving throw or take 2d6 + 5 bludgeoning and be stunned until the end of Detano's next turn. On a successful save, the target takes half bludgeoning damage and is not stunned.

claw. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 5) slashing damage.

eye rays. Detano fires up to two of the following magical eye bolts at one or two creatures that can see within 90 feet. You can use each beam only once in a turn.

Ray of confusion. The target must succeed on a DC 17 Wisdom saving throw, or it cannot take reactions until the end of its next turn. On its turn, the target can't move and uses its action to make a melee or ranged attack against a randomly determined creature within range. If the target can't attack, it doesn't do anything on its turn.
paralyzing ray The target must succeed on a DC 19 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw it has at the end of each of its turns, ending the effect on itself on a success.
ray of fear. The target must succeed on a DC 17 Wisdom saving throw or be frightened for 1 minute. The target can repeat the saving throw at the end of each of its turns, with disadvantage if the spectator is visible to the target, ending the effect on itself on success.
Wounded lightning. The target must make a DC 19 Constitution saving throw, taking 16 (3d10) necrotic damage on a failed save, or half damage on a successful save.

A-096 Detano can perform mythic actions, choosing between the following options. Only one Mythic action option can be used at a time

0 Absolute. (when detane loses half life it evolves again)

The central eye located within the skull creates an area of ​​antimagic, as in the antimagic field spell, in a 150-foot cone. At the start of each of its spins, the detan's eye decides which direction the cone is facing and whether the cone is active (this effect can be applied out of turn if an attack against misses).

Babbling. as long as it can see any creature and is not incapacitated. Each creature that begins its turn within 20 feet of the mouth and can hear the babble must succeed on a DC 17 Wisdom saving throw. If it fails, the creature can't take reactions until the start of its next turn and rolls a d8. to determine what he does during his shift. On a 1 to 4, the creature does nothing. On a 5 or 6, the creature takes no actions or extra actions and uses all of its movement to move in a randomly determined direction. On a 7 or 8, the creature makes a melee attack against a randomly determined creature within its range, or does nothing if it can't make such an attack.