You would need to purchase the fountain of youth, and place your dragon in it. After a set amount of hours, it will turn back into a hatchling.
It will make a lichen dragon
a earth dragon
Mountain
Cold and lightning
A normal fire dragon bread with a water dragon
A lichen, poison, bluefire, or frostfire dragon.
Lava dragon
You have to either buy it for 500,000 gold, or breed water dragon with another water dragon.
i put a blazing and a lighting dragon together and got a sonic
U breed the two dragons ice and sandstorm
well the little adolf f**** the big adolf and they make a hitler
You could get a swamp, crystal, rainbow, tree, moss, mud, quake, seaweed, or cactus from this combination.