Mantaraymon

Mantaraymon is a Sea Animal Digimon whose name and design are derived from the. It armor-digivolved through the power of the "Digi-Egg of Reliability". Based on its appearance, it looks like an offensive speed-type Digimon, but actually it's the opposite; it is a Digimon with a calm disposition that elegantly swims in the vast Net Ocean. However, it is difficult to capture on radar because of its unique figure and is called the "Stealth of the Deep", and it is often used for reconnaissance or treated as an underwater bomber among those who abuse Mantaraymon. For that reason, it is said to be overfished and threatened with extinction. Also, Digimon that assault Mantaraymon are counterattacked with an intense blow from the "Stun Needle" on its tail.

Digimon Tamers: Battle of Adventurers
A Mantaraymon was among the Digimon in pursuit of Minami Uehara and was the one who succeeded in capturing her, bursting out of the ocean and scooping her up, catching everyone by surprise, as they had thought that the battle was over. Mantaraymon returned her to the island base of VP Labs but Takato, Kai, and  followed, but a Depthmon and Mantaraymon attacked them as their boat entered a cave on the island. Guilmon digivolved to and made short work of Mantaraymon.

Digimon Xros Wars (manga)
Attacks
 * Tail Booster (Paralyze Tail): Stings the enemy with its tail leaving it fully paralyzed.
 * Torpedo Ray: Launches itself at the opponent at lightning speeds.