Swamp drake

Drake, Swamp
Hit Dice: 4
Armor Class: 13
Attacks: Bite  (2d4) or claws(1d8) or tail (1d10)
Saving Throw: 13
Special: breath weapon
Move: 12
Challenge Level/XP: 6/400

Swamp drake is a distant relative to the Dragon. Its body is 9 feet long covered in purple scales. His Head is covered with horns and his elongated skull ends very thinly.Typically it hides in the mudy parts of swamp where it's waiting for its prey. While endangered it fiercely attacks with its long claws or tail or with its long fangs. While outnumbered it uses its acid breath - spreading a sick yellow liquid that can digest a plate armor within a glimpse of an eye.