If you are looking for a great Celebi ex deck in , there are a lot of fun options popping up in the meta. There has yet to be one specific Celebi deck rising in the meta as there are several good variants on it that are still being tested.
However,there are still some recurring themes that will help you figure out what deck works best for you. Grass-type decks in were not as powerful before the release of Mythical Island.
However, there have been two big cards released that have changed how the meta has viewed these cards,including Celebri ex and Serperior.
Both of these cards have ways to boost your power overall in the game and can deal major damage when they are able to synergize.
Using them together is the best way to make your Celebi ex deck sing. This deck has a large ceiling but an equally large floor.