Spellcasting. The professor casts one of the following spells, requiring no material components and using Intelligence as the spellcasting ability (spell save DC 15):

At will: guidance, mage hand, mending (as an action)

1/day each: creation (as an action), dimension door, mage armor, plant growth, polymorph

Multiattack. The professor makes two Spatial Blade attacks.

Spatial Blade. Melee or Ranged Spell Attack: +7 to hit (the target can't benefit from cover less than Cover), reach 5 ft. or range 120 ft., one target. Hit:13 (2d8 + 4) force damage, or 22 (4d8 + 4) force damage if the professor is Large or larger, and the professor can push the target horizontally up to 10 feet away.

Dilation (Recharge 5–6). The professor magically alters its physical form until it uses this bonus action again, until it is incapacitated or dies, or until it dismisses the effect (no action required). Choose one of the following options:

Expand. The professor becomes Large if there is sufficient room for it to grow. It has advantage on attack rolls and on ability checks and saving throws that rely on Strength.

Contract. The professor becomes Small. Its walking speed increases to 60 feet, attack rolls against it have disadvantage, and it has advantage on ability checks and saving throws that rely on Dexterity.

Avoidant Translation (2/Day). When the professor is hit by an attack roll, it can increase its AC by 3 against that attack, potentially causing it to miss. The professor can then teleport, along with any equipment it is wearing or carrying, up to 30 feet to an unoccupied space it can see.