Cornet

Charge. If the Cornet moves at least 20 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 9 (2d8) bludgeoning damage. If the target is a creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.

Memory Projection: As an action, the Cornet can project an warped illusion of the target's happiest memory. Originating from the Cornet's horn, this effect causes the target to make a DC 15 Wisdom saving throw or be charmed for 1 minute. While under the effect, the charmed target views it's surroundings as the memory, unable to distinguish reality from the memory. All outside viewers to the progression see a hazy cloud surrounding the targeted individual and three shadowy figures projected from it's horn. While projecting, the Cornet is vulnerable to ranged attacks and ranged spell attacks, as it's concentration is elsewhere. 

Gore. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) bludgeoning damage.

Burrowing: The Cornet uses its burrowing ability to retreat and reposition, emerging unexpectedly to gore with its horn.  If a Cornet burrows at least 10 feet straight towards a target and hits it with a gore attack on the same turn, the target takes an extra
(1d6){"diceNotation":"1d6","rollType":"damage","rollAction":"Charge","rollDamageType":"bludgeoning"} bludgeoning damage.

However, if a Cornet is Memory Projecting, the projection disappears when it burrows.

Shadows (Only Available if Target is Affected by Memory Projection) . The Cornet magically creates three illusory shadows if it isn't in bright light. The duplicates move with it and mimic its actions, shifting positions to entrap the target within the memory being projected. The illusory shadows take on the form of individuals from the target's memory, however the individuals are warped, either taking on a different persona or appearing dead or decaying.  

The illusory shadows can make attacks towards both the individual targeted and any creature within a 60 foot radius. 

Multiattack. The shadow makes two attacks: one with its brain bleed and one with its claws.

Brain Bleed. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit:  (1d6 + 1){"diceNotation":"1d6","rollType":"damage","rollAction":"Brain Bleed","rollDamageType":"piercing"}[/rollable] piercing damage and (1d8 +1) psychic damage {"diceNotation":"1d8","rollType":"damage","rollAction":"Brain Bleed","rollDamageType":"psychic"}[/rollable]

Claws. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit:  (2d6 + 1) {"diceNotation":"2d6","rollType":"damage","rollAction":"Brain Bleed","rollDamageType":"slashing"}[/rollable] slashing damage and (1d4 +1) psychic damage {"diceNotation":"1d4","rollType":"damage","rollAction":"Brain Bleed","rollDamageType":"psychic"}[/rollable]

If the Cornet is ever in an area of bright light, the shadows disappear.

A shadow has the Cornet's AC and uses its saving throws. If an attack hits a shadow, or if a shadow fails a saving throw against an effect that deals damage, the shadow disappears.