Baltimaar

Regeneration.Baltimaar regenarates 15 hp at the end of its turn,this effect is active until Baltimaar is dead

Multiattack. Baltimaar makes 8 attacks in a turn ,7 tentacle ,1 gaze

tentacle. +8 to hit, reach 60 ft., 1 target. 10d10[bludgeoning ] damage. if it kill the target Baltimaar is healed for the target's max hp ,consuming the target's soul in the process.

gaze of illusions.  +7 to hit, range 10/100 ft., 1 target.  Baltimaar creates an illusion of the target with half it's stats.

Gaze of destruction.+6 to hit range 10/100 ft 2 targets. The target makes a DC 18 constitution saving throw,on a fail their hp is halved,if this happens 3 times their soul is devoured,if they succeed they take 4d12 [fire] damage.

Gaze of mind control.+7 to hit ,range 10/100 ft 1 target.The target makes a DC 15 wisdom saving throw,if it fails the target is mind controlled (no matter the immunity)for 1 hour,if it succeeds ,it the target get's knocked prone

Gaze of mass telekinesis.Baltimaar can lift 5000 pounds as a normal action,it can lift living things 

Attack relflecion,if Baltimaar takes less than 20 damage the damage is redirected at the attacker

Baltimaar has 5 legendary actions 

Gaze (Costs 2 Actions). Baltimaar uses one Gaze ability

Tentacles.baltimaar attacks with 2 tentacles

counterspell. Baltimaar counters a 7th level spell or lower