Grass is usually a very slow but tanky archetype, with Venusaur ex being an obvious cornerstone of that playstyle, making Celebi exs fast, aggressive, and very luck-reliant attacks incredibly unique
In that case its going to make everyone have a bad time, including its caster
Evendo, Waking Haven reminds everyone of the pretty busted Gaea's Cradle, so the value justifies itself a bit
Pathrazer of Ulamog is a great way to obliterate board states while applying pressure, Sepulchral Primordial can build out a big board, and Burning-Rune Demon can search for any of the many options
In 2010, an online version of the game was released for Windows and Mac, called the Pokmon Trading Card Game Online was released