As noted in a recent Reddit thread, Who hasnt edited their deck to exclude EX Pokemon, fight the computer and win, only to find out that you have an alt art card in the deck so the mission requirement isnt met? Related Others called this task a dumb mission and suggested that the developers clarify the phrasing for players
How to Build a Pokmon Deck for Tournament Play and Achieve Great Pokmon Tournament Results If you've ever wondered how to build a Pokmon TCG deck that goes beyond being merely functional to actually being viable in tournaments, have a read through this
EX Holon Phantoms: Known as Holon Phantom in Japan
It is a much needed help for green and with a mana cost of only 2, youre going to be able to get this into play pretty quickly and be seeing 3 every turn
Other cards that can fetch very high prices include the remaining Power Nine (Mox Pearl, Mox Sapphire, Mox Jet, Mox Ruby, and Mox Emerald, Time Walk, Timetwister, Ancestral Recall) as well as a selection of cards from 1993 and 1994