Abilities
Jewel Dragons are fundamantly connected to magic so of course theres gonna be an abilities tab.
Jewel dragons don't really age from time, instead it is caused by using magic. Using magic causes their cores to "fade away" so the more magic they use the more tired they will become. This process only happens outside the ambrosian realms because the high concentration of magic in their native realms replenishes the magic they consume from using their powers.
When Jewel dragons run out of too much energy they can choose to turn into stone, this "hibernation" processes allows them to preserve themselves, and they can also passively recover their strength by absorbing energy from the surroundings, but depending on how much energy is present within the area they chose to hibernate in, it can take a really long time before they can wake up again.
Corruption
Jewel dragons who are under major psychological strain for too long and who lose mental stability are at risk of becoming corrupted, when this happens they can lose control of their physical form which they can transform into extremely dangerous volatile beings who are capable of causing great destruction. Luckily, Jewel dragons rarely get to this point as they are naturally a very content species regardless of the situation they face. When a Jewel dragon has fallen into corruption, it is often a sign that something devastating has/is going to happen.