heya,i made a new addon and this addon is called dragon Expansion, for this update i only added 3 mobs in this update, i will add more dragons in future updates

Dragons 

Fire Dragon - this dragon has the ability to breath fire from its mouth, and it can fly also this dragon spawn naturally in the nether 

Red Dragon - this dragon is kinda like Fire dragon, but i different model, anyway, this dragon can shoot fire balls from its mouth 

Undead Dragon - this dragon is like a zombie, it spawns at night and also this dragon can breath smoke 

Skeleton Dragon - This dragon is massive its a boss actually, it spawns in extreme hills and this dragon has 2 phase, "phase 1" in phase 1 this dragon is on land and uses melee attack "phase 2" phase 2 is when the dragon can fly around and can also breath some sparkly some from its mouth

also this dragon drops alot of bones, and you make armor and sword with it, it has the same recipe as the normal armor and sword 

you can see the dragons here and the armor in game 

V2 Update

Amphithere - this kind of dragon has no legs but with wings, this dragon is almost the same as skeleton dragon, this mobs spawns everywhere, don't worry, he might be big, but he is easy to kill (maybe)

Drake - this type of dragon has no wings, but with four legs,this mob spawn in the nether 

Asian Dragon - this dragon has no wings, but he can fly, this dragon has the ability to shoot fireballs and this mob spawns in plains biome 

Video 

https://youtube.com/embed//WKUb2JjN9L4

creator: https://www.youtube.com/channel/UC-Hm8T6fAPw3cs4QHMVpE2w

Turn on all Experimental Gameplay