Leaf Dragon

Leaf Dragons (TV: Co-Owner of a Lonely Heart) were sentient creatures with the ability to peel off a humanoid's skin in seconds. They fed on these victims. (TV: The Coach with the Dragon Tattoo)

Biology
Leaf Dragons were colossal in size, towering over humans; their bodies being several metres long and possessing an overall greyish colour and scaly hide. Due to their massive size, they were incredibly strong and tough, able to easily overpower and subdue their prey.

They were bioluminescent, with naturally occurring cyan light showing between their scales, inside their mouths and even on the tips of tendrils that were located on their foreheads and tails. This suggested they were native to an aquatic planet, with fins and gills also being present. However, they were also amphibious, being able to survive in Earth's atmosphere.

Leaf Dragons fed on the blood of their prey and were carnivorous. (TV: The Coach with the Dragon Tattoo)

Abilities
Leaf Dragons appeared to be able to travel through the tears in space and time at will. The tear would automatically snap shut behind them. They killed their prey by skinning them alive in a matter of seconds. They would then leave the skin behind and drag the body back to another location to feed on the blood.

They were quite intelligent, being able to speak English and had concepts such as love. Leaf Dragons could imprint themselves onto the skin of another being, which made the host stronger than normal, but left the Leaf Dragon trapped with no way of escape and needing to be fed or else they would die of starvation. The Leaf Dragons themselves did not know how to solve this problem. (TV: The Coach with the Dragon Tattoo)

History
A pair of Leaf Dragons found their way to Coal Hill Academy through a rip in space-time in the hallway. After the female dragon was imprinted on the body of Coach Dawson, the Male dragon murdered at his behest.

This continued until Ram Singh convinced the male dragon to kill Dawson, after he threatened to betray the male dragon and kill the female dragon imprinted onto him. (TV: The Coach with the Dragon Tattoo)