Building Decks On Arena Speaking of decks, Arena provides you with a head start for your collection by providing you with decks you can play right out of the box, or tweak and update with your own preferences
Credit goes to Pokbeach for spotting this and making a full list of the cards, though I've taken the time to quickly double check
This allows WotC to unban cards in Historic by rebalancing them instead, like with Omnath, Locus of Creation
There are only two new Eeveelution Ex cards in the set in the form of Flareon Ex and Sylveon Ex, but they are both sitting at the very top of the meta
Pros Glen Elendra Archmage is awesome because she has Persist
Larger decks could be fun for some people to play since they can have a much larger selection of spells, but I don't there are any strategic reasons for doing