A special unobtainable form of the pokemon Floette that was datamined since generation 6 and has yet to be released in any event. Eternal Flower Floette can't be bred or evolved but it has higher stats than the other Floette forms. It even has its own
signature move Light of Ruin and it makes an appearance in the end of the Pokemon X and Y as the Floette of prince Az. It seems like Game Freak doesn't want to release it although it is included in the data of every generation afterwards. Even Pokemon
Sword and Shield who had received the controvercial Dexit, have its
signature move in their data.