mtg double masters set booster box Pack Wizards of the Coast had to put two rare or mythic rare cards in each pack Double Masters - MTG Wiki

First strike changes the order of this process: [27] Usually, damage is assigned at the same time

In Commander, its generally an enchantment that protects your creatures, which is something white decks can get behind

As many know, Black uses a lot of Graveyard mechanics (Returning used cards to your hand to play again through the cost of sacrificing a creature or your own life pool), and Blue is a counter mechanic (Stopping your opponents spells and summons before they happen)

Dragon Rush can be used for a Double Colorless Energy when you have an Energy Gain attached

You'll want it graded by an authentication company to get the full value from a sale