Celestine does require you to gain life before you can start bringing creatures back, with so many ways to efficiently gain life in Commander this isnt a problem at all
Sweepers kill fewer creatures than expected because there are so many other removal spells in Izzet Looting keeping the battlefield clear
Stay Silent, Stay Hidden is one example, but Duskmourn is also bringing us Floodpits Drowner, a much, much more efficient version of the effect at uncommon
Youll find the Xerneas promo card at: Best Buy (US) JB Hi-Fi (Australia and New Zealand) The Yveltal promo card can be found at: GameStop (US) EB Games (Canada, Australia, and New Zealand) The Xerneas promo cards will feature the Mega Evolution logo, and the Yveltal promo cards will be emblazoned with the retailers logo, making them unique additions to your Pokmon TCG collection
They are foil etched in what is now Magic 's standard approach to foil etching, using a matte frame with a special varnish in the same style as the foil-etched cards in Commander Legends: Battle for Baldur's Gate