The roller coaster with how we all treated Celebi sure is something.

When Celebi first came out, many people called it broken. Then, after some tournaments, people were flopping on Celebi. Celebi had poor tournament results, and you even had people saying that Golem / Druddigon and Scolipede / Weezing were better and more consistent competitive decks.

Fast forward to today. Celebi is a top deck again. People figured out that Exeggcutor EX was perfect for Celebi decklists. Celebi wins the biggest Pocket TCG tournament twice in a row. And only one week before the new set drops, Celebi wins 2-1 in grand finals against a Moltres / Arcanine deck with Mew. Best part is that the Celebi deck won against Arcanine anyway despite flipping 9 tails in one game.

If the new set shakes up the meta and Celebi falls off, I think it's okay because Celebi had a great ride all the same.