After all, anything printed before Exodus used a black expansion symbol regardless of rarity, so the symbol color won't help you tell what rarity a card is
But one of my biggest complaints about Magic in general is that some players do not understand the meaning of the word casual
With this ability, Mewtwo will gain two energy every turn one from Gardevoir, and another as usual from the energy pool
Your turn ends the moment you declare an attack
The main constraints here are as follows: No mass land denial or extra turns, no two card infinite combos, no cards from the Game Changers list, and only a few cards that search your deck for other specific cards (Tutors)
Ive not played the decks yet, for obvious reasons