Original snake & naga Digimon
Another line of original Digimon designed and drawn by me (unfortunately). All members of the line are virus attribute and I tried to tell a bit of a story with the evolutions.
Snakemon, Rookie/Child level. It is a reclusive and shy Digimon that is rarely seen and hard to befriend. It prefers to live in dry environments and defends itself with venom that can cause enough pain to drive away even Champion/Adult-level Digimon. The golden band around its neck is said by some to be proof that it is the descendant of a species that wore a holy ring but is not longer holy. Others believe it is simply decoration. Its special moves are Little Fang (where it bites an enemy and injects them with venom), and Toxic Bubble (where it spits a bubble of caustic venom).
Snakemon evolves to Cobramon. Cobramon is a powerful and dangerous reptile Digimon known for its extremely violent temper. While Cobramon will fly into a rage at the slightest provocation, in its rare moments of calm, it desires something more than an existence of combat. The twisting golden patterns and glimmering gems on the underside of its hood mesmerize any who see them, leaving them easy pickings for Cobramon's venom. Its special moves are Venom Fang and Venom Shot (where it bites its foe or spits venom, respectively), and Coil Crusher (where it wraps its foe in its body, simultaneously constricting them and cutting them apart with the blades that cover its body).
Cobramon evolves to Nagamon. In its desire to overcome the violent nature it had as Cobramon, Nagamon sought out wise elders Digimon like Kongoumon and Shakamon to learn from. I now practices discipline and meditation to reach enlightenment. While it avoids conflict, it is deadly when it fights. Its sword injects venom into anything it cuts, causing numbness and paralysis. The eye on its forehead allows it to see the weak points of its enemies. It's attacks are Serpentsword Strike (where it attacks with its sword, paralyzing and wounding its foe), and Nadi Tarangah (Where it conjures forth a gout of water to wash away its foes. That means 'surging river' in Sanskrit according to the online translator I used).
Nagamon evolves to Sheshamon. Sheshamon has obtained enlightenment and stands alongside Shakamon in the Digital World's hierarchy. Despite being a virus attribute, it works to support the structure of the network and is existence is said to be Vital to the continued existence of the Digital World. Ancient texts claim that a previous iteration of the Digital World descended into chaos and was reset by a legendary warrior, leaving Sheshamon as the only survivor who helped build the Digital World's current iteration. The ring that hovers behind its back contains a geocentric solar system that is believed to be the Digital World in miniature. The ring rotates throughout the day, with the sun being on top and noon and the moon being on top at midnight. The cobras living on the rim maintain the solar system's balance. Its attacks are Celestial Strike (where it attacks with its twin blades. The blades warp spacetime as they are swung, allowing them to target the foe's Digicore without harming their body) and Mantavara (where it warps spacetime to age its foe to dust in an instant).
This line contains the most mythological references I've put into any of my Digimon. Not so much in the first two, which are just a snake and a cobra, though Cobramon includes the alleged snake ability to hypnotize their prey. Nagamon is based on a naga, mythical half-snake/half-human beings found in multiple south Asian cultures, most famously in India. To be more accurate, it is a nagini, a female naga. Nagas were generally seen as benevolent or at least peaceful if appeased. Nagamon is going through a spiritual journey I based on Buddhism. Starting as a violent Cobramon, it seeks enlightenment through meditation and determination, seeking to overcome its violent nature. Nagamon's clothes are based on historical Indian clothing given a Digimon twist and the sword it carries is an Indian sword called a talwar. Nagamon's eyes being covered is feirly standard for human-faced Digimon while having one eye in the middle of the head is a reference to Sahasara, the crown chakra that is the basis for new age ideas about the third eye.
Sheshamon completes Nagamon's journey to enlightenment, becoming a Bodhisattva like Shakamon. It is also based on two Hindu gods: Shesha (sometimes called Sheshanaga or Ananta Shesha) and Manasa. Shesha is the king of the serpents, depicted as a thousand-headed cobra who holds the sky or the planets up on his hoods. Manasa is the goddess of snakes and the queen of the nagas. While visibly, Sheshamon is based more on Manasa, I used more of the lore of Shesha. Manasa has multiple arms (four) one of which holds a snake and one of which is displayed palm out, a gesture called Varadamudra. I put both of those in Sheshamon's design. Sheshamon's existence supporting the structure of the digital world and having a ring containing a solar system on its back are a reference to Shesha holding up the sky. Sheshamon surviving the destruction of a previous iteration of the Digital World also comes from Shesha, who survives each kalpa (cycle of birth and destruction of the world) unchanged and intact. The ring contains references to ancient Indian astronomy. The solar system is geocentric, which is how the ancient Indians (as with most ancient cultures) saw the universe. I included different types of celestial objects in the ring: an earth-like habitable planes, a rocky planet, a gas giant, a moon, and a comet. The text is Digimoji translations of (the English translations of) the names of the Navagraha, Hindu gods that represent visible celestial bodies in the solar system plus the two lunar nodes. They are Suryah (sun), Chandra (moon), Mangala (Mars), Budha (Mercury), Brihaspati (Jupiter), Shukra (Venus), Shani (Saturn), and Rahu and Ketu (the ascending and descending lunar nodes). The ring rotating through the day and having bits on it that represent day, night, and dawn and dusk are refenrences to another group of Digimon I did that are based on those times of day. I may use Sheshamon and that group in a future story. Sheshamon's headpiece is based on common depictions of Shesha and its swords are Moplah swords that originated in India.