Dragon Effects are a series of know how to train dragons, but some of the effects are not good for dragons
Dragons get eel pox after accidentally swallowing a Eel they get Uncontrollable firepower, infinite number of shots, vision affected, possible fever. This is the reason why dragons avoid Eels except Typhoomerangs and Death Songs
Dragons become, Docile in nature,albeit temporarily. But is not ineffective on Whispering Deaths.
Sneezing, defective firepower possible fever, weakness.
inability to produce fire, weakness, paleness.
Aggressive behavior, wanting to have the root immediatly.
ineffective on Gronckle because of stone diet. Possibly inaffective on Hotpurples .
Uncontrolled firepower on Mostrous Nightmares and possibly on other dragons.