Jewel dragons were introduced, and while the benefit vs cost or energy is debatable, they do work for quickly leveling a creature. My question is, can there be another creature that has a chance to level skills regardless of what that is? It could be considerably less than using a like skill card to strengthen (maybe 5%-%10 chance per card used). There are many high end skills in this game that are not realistic to level once, let alone max out.
Thanks!