Players begin the game with a basic Pokmon in front of them, which they can gradually evolve over time into a more powerful version of the card
While normally this would leave a one turn gap in which Mewtwo needs to recharge, Gardevoir accelerates this by letting you attach two Psychic Energy per turn
Another thing that jumped out at me is that a lot of slivers have abilities that cost mana, and if we get too many in play it can start to become a burden
Patron of the Vein I really love Patron of the Vein
Its good when you need to gain life, and the fact that you can reanimate a nonland permanent opens the possibilities for cards like Lunar Convocation, Builder's Talent, and Hopeless Nightmare, among others
The best part about this card is its splice onto arcane cost since it lets you add it onto an arcane spell on the stack just by exiling four creatures from your graveyard