Unlike most of the other dragon race, the ion dragon are consider one of the unique dragons that has not been seen by many. These dragons doesn't reveal themselves to anyone, not even in astral realm and even other dragons know about them except some dragon gods which they need to give command for shape and recycle the world energy. Their appearance can be invisible > camouflage/gas/transparent with outer line > white transparent > solid white gas with electric. They are totally different than lightning/electric dragon, as ion play the most important part to shape the world eco system or nature. The wind travel, cloud, rain, snow, water evaporate, ice, hurricane, tornado, lightning, photosynthesis, sun light, electric discharge, electromagnetic field, volcano eruption, earthquake, wireless waves and many more that are move by ion energy. Example; these dragon even more important than wood/forest dragon but of course while ion is the energy that shape and recycle, the wood/forest dragon grows still equally important but ion dragon have more roles and they are more like nature's engineer or architect. As for alignment and art, the ion dragon are completely neutral. They don't have good or bad side and magic they use are pure art without WA, GA, DA and BA. These dragon doesn't have any gender or age and they cannot die as long as nature live. They may seem like mindless but they aren't complete stupid, they just don't care you are good or evil or what you believe, because karma thing is none of their business all they care is work for nature, so if you have them to do your clean/dirty work the karma will all be accounted to you only.
In PF we summon them as helper to any human needs their service. Their magic is better than most dragon and other beings since they use pure energy without any classification. They can perform healing, cure, protection, ward, luck, fortune, wealth, prosperity, blessing, cleansing (aura, body, chakra, home, energy), energy (manipulate, transform, drain, purification), curse or remove curse (hex, evil eye, negative energy, pain/harm, illness, disease), magic (death, chaos, order, rune, blood, life, sex), advance wish granting, psychic (mine reading, mind blast, mind shield, mind control, jump to another dimension or universe, telepathy, telekinesis, see past/future), change eco system (YOU MUST KNOW WHAT YOU DOING because changing environment might cause either life or death or epidemic), and many more. The dragon normally stay invisible until you call or talk with them.
Ion Dragon don't have any royal or god ranks.