Information
The Guardian Dragon once known as a cancelled Dragon from Dragon Mounts made it's way into the extra dragons.
The Dragon has 2 varients.
The Elder Guardian Dragon
The Guardian Dragon
Both of which hatch from a Guardian Dragon Egg.
How To Get
To get the Guardian egg place a water egg on primarine and after 5 minutes will convert into a Guardian egg.
Wait another 20 minutes for it to begin the hatching process and then wait another minute for it to fully hatch to either get the Elder Guardian Dragon or Guardian Dragon.
Guardian Dragonscale Armor when fully equipped gives you Water Breathing and Resistance 2 when mobs are nearby it will effect them with slowness wich can allow you to escape easily. For even more diversity you can trim all Armor pieces with every trim possible.