This monster appears in the Dungeons & Dragons Player's Handbook 2024.

Traits

Regeneration (Slaad Only). The spirit regains 5 Hit Points at the start of its turn if it has at least 1 Hit Point.

Whispering Aura (Mind Flayer Only). At the start of each of the spirit’s turns, the spirit emits psionic energy if it doesn’t have the Incapacitated condition. Wisdom Saving Throw: DC equals your spell save DC, each creature (other than you) within 5 feet of the spirit. Failure: 2d6 Psychic damage.

Actions

Multiattack. The spirit makes a number of attacks equal to half this spell’s level (round down).

Claw (Slaad Only). Melee Attack Roll: Bonus equals your spell attack modifier, reach 5 ft. Hit: 1d10 + 3 + the spell’s level Slashing damage, and the target can’t regain Hit Points until the start of the spirit’s next turn.

Eye Ray (Beholderkin Only). Ranged Attack Roll: Bonus equals your spell attack modifier, range 150 ft. Hit: 1d8 + 3 + the spell’s level Psychic damage.

Psychic Slam (Mind Flayer Only). Melee Attack Roll: Bonus equals your spell attack modifier, reach 5 ft. Hit: 1d8 + 3 + the spell’s level Psychic damage.

Roll20 Note: This stat block requires user edits for full functionality. Please use this list to ensure all edits are made appropriately for full effect.

• Decide if the spirit is Beholderkin, Mind Flayer, or Slaad. Delete any features that are not that type.
• 'Spell level' refers to the level of the spell slot used to cast the Summon Aberration spell.
• Armor Class = 11 + spell level
• Hit Points = 40 + (10 for each spell level above 4)
• Proficiency Bonus = the spellcaster's total proficiency bonus
• Whispering Aura: Save DC equals the spellcaster's spell save DC
• Multiattack: The spirit makes a number of attacks equal to half the spell's level (round down).
• Claw, Eye Ray, or Psychic Slam:
• Attack bonus equals spellcaster's spell attack modifier. 
• Add spell's level to the total damage.