Ryuu has been a part of the game since I started playing 5 years ago. Initially, I had thought that it actually was a strong dragon, just like the game said. However, it isn’t. It has been abandoned by PG for several years and has no real significance to the game, nor does it add any benefit at all to the average player.
Here are a couple of ways that this can be addressed:
Have its AP / stats scale up based on the player’s strongest dragon (highest AP).
Remove it entirely as it is useless.
Replace it with another dragon, with new or modern spells, possibly scaled along with the player’s highest tier.
Replace it with some other kind of benefit, like a base boost.
I know that this isn’t such a priority as some more serious issues, like those related to Atlas and seasonal things, but it’s just something that I’ve noticed and felt deserved some kind of thread. Thanks for reading.