Multiattack.
The aberration makes a number of attacks equal to half this spell's level (rounded down).
Eye Ray (Beholderkin Only).
Ranged Spell Attack: your spell attack modifier to hit, range 150 ft., one creature.
Hit: 1d8 + 3 + the spell's level psychic damage.
Regeneration (Slaad Only).
The aberration regains 5 hit points at the start of its turn if it has at least 1 hit point.
Multiattack
The aberration makes a number of attacks equal to half this spell's level (rounded down).
Claws (Slaad Only)
Melee Weapon Attack: your spell attack modifier to hit, reach 5 ft., one target.
Hit: 1d10 + 3 + the spell's level slashing damage. If the target is a creature, it can't regain hit points until the start of the aberration's next turn.
Whispering Aura (Star Spawn Only).
At the start of each of the aberration's turns, each creature within 5 feet of the aberration must succeed on a Wisdom saving throw against your spell save DC or take 2d6 psychic damage, provided that the aberration isn't incapacitated.
Multiattack
The aberration makes a number of attacks equal to half this spell's level (rounded down).
Psychic Slam (Star Spawn Only)
Melee Spell Attack: your spell attack modifier to hit, reach 5 ft., one creature. Hit: 1d8 + 3 + the spell's level psychic damage