False Appearance. While the cactus knight remains motionless, it is indistinguishable from a regular cactus.

Brave. The knight has advantage on saving throws against being frightened.

Multiattack. The cactus trooper makes two Thorn Blade attacks.

Thorn Blade. Melee Weapon Attack. +5 to hit, 5 ft., one target. Hit: 13 (1d10+3) piercing damage.

Mind Bombardment. The cactus trooper chooses one target within 120 ft. of it. The target must make a DC 17 Intelligence check or take 11 (2d10+2) psychic damage.

Plasmweb. The elite cactus knight fires a web made of electrified plasma at a target within 90 feet. The target must succeed on a DC 17 Dexterity throw. On a fail, the target is restrained and takes 12 (4d6) lightning damage. On a success, the target takes half as much damage and is not restrained.

Parry. The cactus knight adds 2 to its AC against one melee attack that would hit it. To do so, the knight must see the attacker and be wielding a melee weapon.