Coatl is just a Nahuatl (Aztec) word for 'serpent' or 'twin'An Eastern-style serpentine dragon, like Shenron from DBZ or Haku from Spirited Away. Kind of weird to see them lumped together like that as they are typically intelligent and associated with divinity (and sometimes water!) rather than the savage beasts we picture in the West. Not sure what the mythology behind the Coatl is though.
Coatli is means 'water serpent/serpent water'
Tbh, it's probably in reference to Quetzalcoatl if what makes you one is having "dragon" traits with feathery wings.