Filter Dragon
(Note: post was originally written in English)

Egg
“This egg cleans it's surroundings”
The Filter dragon egg is able to clean the air around it by bringing in air through the egg's vents and releasing only clean air. The dragon inside uses the debris in the air as nutrition to hatch healthy.

Hatch
“It brings withered plants back to life”
The hatch is very curious and explores around, it's steps bringing dried grass back to life and helping flowers and crops grow strong. It's propeller tail spins rapidly when it is startled.

Hatchling
“It decontaminates water as it swims”
The dragon's propeller is now strong enough to let it swim long distances, the path behind it becoming clean and clear water. The cloud-like tufts on it's legs and ears collects more concentrated grime in lakes or rivers it passes through, which it them combs through and cleans off later.

Adult
“It purifies the world wherever it steps”
Grown filter dragons are admired and beloved for it's unmatched abilities to clean it's surroundings. It can take large breaths, filtering the air through the vents on it's neck and using the dirt as it's main food source. It's tail allows it to swim rapidly through even the most muddy lakes, cleaning the water wherever it swims. Each step it takes brings life to the soil beneath it.
Filter dragons are often seen in cities, picking up trash and cleaning waterways. It punishes people who litter or carelessly harm the environment, and is often kind to those that treat the lands with a similar kindness. A grown dragon with dark colored clouds on it's legs and ears indicates that it is unwell. Filter dragons consume debris and bad substances for the environment as food, but too polluted of an area can make the dragon unwell. Truly, this species thrives in pure and clean ecosystems, and will try it's hardest to keep the world clean.
Info
Species - Filter
Element type - Steel/Earth
Height - 1.6 ~ 2.1 m
Weight - 86 ~ 99.7 kg
Food - dust and debris
Main discovery area - clean towns or outskirts
Main discovery time - year round
Story
The large city was full of people and activity, from the roads to the rivers, from small homes to several story buildings. Not many people took time to care for the land, throwing their trash to the ground and waste to the water. Vibrant and diverse plants began to appear less and less, the water became murky and discolored.
A duo of young kids were rushing to go fishing at the lake. As they finished their snack, they threw the wrappers to the ground and took off to the lake. A large dragon then stood in their way.
“You're planning to go pick that back up, right?”
The kids looked back to the wrapper and shook their heads. The dragon walked over and picked the wrappers up in it's beak.
“It is bad to leave your trash around. You have to throw it away, remember?”
The two children looked up at the dragon as it dropped the trash into their hands.
“It's only one piece of garbage, how much bad can that do?”
The dragon shook it's head as it walked with the kids, approaching the lake.
“One small bit of trash may not seem like much, but it can quickly escalate. If everyone else had the same logic, there would suddenly be a lot more trash to worry about.”
The children gasped as they neared the lake. The once clear waters have become murky, debris and trash floating on the surface.
“What happened here? Did garbage cause this!?"
The dragon nodded as it walked into the lake.
“This is what happens when people neglect the world. The water, air, and land will suffer. But if we show kindness, the lands will continue to thrive.”
The dragon's propeller tail began to spin rapidly as it swam, the water becoming clear once again behind it. The dragon did not stop until the lake was cleaned from the neglect. The children cheered as the dragon walked out of the lake, now resting as the two enjoyed the clear water.
When the two kids returned home that day, they made sure to throw their wrappers away in the first trash bin they saw.
Aditional Info

The filter dragon takes inspiration from cleaning air, land, and water pollution, along with design aspects inspired from griffins, known in mythology for protecting their lands and their treasures.
The neck pattern is based off of air filters, and the tail is based off of a boat's propeller. The cloud-like fur starts off dark grey while the dragon is a hatch, and becomes white as it grows up, representing how the air becomes higher quality as the dragon evolves.
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