For one energy, it can deal 170 damage and search for any card in your deck, and its second ability is a good contingency choice for when you need to hit two bench targets for 120 instead
The set includes two ready-to-play Commander decks, each helmed by a legendary creature that presents an enticing strategy
Additionally, you'll be able to earn a special dragon's eye Wastes promo card at your local game store through special Tarkir: Dragonstorm -themed events
Fresh supply = readily available
I do think they want to slide back and forth through different expressions and play the one that suits their needs at that given time. Of course the Historic format was already unique to Arena as well, if technically playable with paper cards
Furthermore, there's much more of a story that's present in the sequel where Team Great Rocket's villainy runs amok