Baxter's got the right expression, but hasn't seen his back yet
We anticipate a main or special expansion to drop sometime in late November or early December.
Moreover if you do the math, drawing many cards gives you card advantage and access to all other aspects of your deck more quickly, so you have greater chance to have access to more lands, ramp, removal, utility, creatures, combo pieces, even more card draw and any other strategy you may run in your deck
That alone makes mentioning it here worthwhile
Like most Pokmon cards, the value of Xerneas depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Mega Evolution)
I put together a sample storm decklist: Zacama ETB Storm from CubeTutor.com The core of this deck is a creature-based card draw engine to get you to your combo pieces: Mana generation: You have a small tutor package for finding Zacama: The ETB looping package: The Zacama-cheat package: Then the win conditions: Paradox Engine also gets you bonus Fauna Shaman /Elvish Piper activations + extra mana from the moxen/Llanowar Elves