Solise, the Floral Wonder is the original, then in the story she Awoke, kind of into a celestial/Hypogean, but without changing faction ROFL. You can now get Solise, Water animator, with time cards, kind of like Stargazing, but rarer. Shes now much stronger, but sadly they didn't care for players that already had build the original Solise, you have to start all over buildling awakened Solise.

So in short, they are 2 completely different heroes, but you can't use them in the same team, like linked heroes.