Fontis

Actions

-Fontis Bite: Melee attack, deals 1d8+2 piercing damage.
-Headsaw Strike: Making use of its spinning saw-like head structures, a Fontis can inflict 2d4+2 damage on its target. Can also use it on creatures that are flying up to 10ft high.
-Wheel of Doom: As a bonus action, a Fontis can spend 50ft of its move action in this ability, which allows it to jump and roll forward in the air. Upon landing, it will make a DC 15 Dexterity save; if it fails, it will fall prone. Any creature flying or hovering up to 25ft high that stands in the Fontis' way during the Wheel of Doom will be inflicted 2d6+4 slashing damage.

Reactions

-Claw Slam: Once per round, when the Fontis dodges a melee attack, it makes a DC 18 Dexterity check. If it succeeds, it will grab the attacker with its tail claws and slam it onto the floor, then launch it 10 ft away. This reaction will inflict 1d10+4 bludgeoning damage and the Stunned condition on the target for the rest of the round.
-Fontis Rage: Once per round, after receiving a critical hit, the Fontis will let out a massive roar accompanied by the display of its frills and the clacking sound of its headsaws. Every other combatant will do a DC 12 Constitution save: those who fail it will suffer the Frightened condition for the rest of the round. Additionally, the Fontis has the choice to try to perform a Wheel of Doom attack.

"Fontis are large creatures, measuring between 13 and 15 meters in length. These ferocious aberrations of nature are distinct from any other creature in the planets it inhabits, possibly in the entirety of the galaxy, due to the articulate bone prolongations of its head that end in spinning gear-shaped structures known as "headsaws", the large membranous frills on their necks, the sail on their backs and the five articulate claw-like structures at the end of their long tails.   Nearly every part of this monster is a weapon, and its aggressive behavior matches it. Anything that resists its intimidation abilities will be hunted down by this beast, including other large predators. However, since they are solitary by nature, large groups of smaller creatures (or singular creatures that are much larger, such as Xpinarchi) are capable of overwhelming them."

Forests and arid plains, planets Xuz Fareh and Cyardalos.