This means it can go in any 5-color deck
This policy was applied to Duel Decks: Phyrexia vs
Each booster contains 14 Magic cards, 1 Sticker sheet, and 1 ad card/token, with 1 Rare or Mythic Rare card, 2 Attraction cards of any rarity, 3 Uncommons, 7 Commons, and 1 Full-Art Space-ic Land card (Planetary land in 72%, Showcase Orbital land in 24%, and shock land in 4% of packs)
Green's arguably the color best if you like (or need to) splash or move into three colors
This is a special action, not an activated ability. With the new rule, companion players must go through an additional step and additional mana to get their precious kitty or other companionslike my favorite Yorion, Sky Nomadinto play