| • Acid breath|
Rust dragons are known to hunt Gorgons, and live and feed in sulfur mines. With this appetite, rust dragons spew a concentrated acid as their primary attack. This acid is capable of eating through the strongest armor, lowering the defense of its target while inflicting further damage. Placing Hydras or any living Dragons in the Skeleton Transformer will give you Bone Dragons instead of regular Skeletons.
With their incredibly high speed, health, and attack damage, Rust Dragons are generally considered the third strongest creatures in the game, following only Azure Dragons and Crystal Dragons in raw stats.
Acid breath special ability
Acid breath special ability may occur after a stack of Rust Dragons have attacked target creature stack and before the stack has a chance to retaliate. The breath reduces the target stack's defense by 3, and has 30 % chance to cause additional damage amount of 25 points per attacking unit.