magic the gathering ravnica city of guilds booster box Magic: Bundle | 10 Packs + Land Cards (230 Cards) available in standard and foil versions Ravnica: City of Guilds Booster

-11: Search your library for any number of colorless nonland cards, exile them, then shuffle

spell cards that you may find useful in a duel and define the current competitive scene of the trading card game

a two-mana artifact that produces mana is much better than a three-mana one that makes any color

Credit: Wizards of the Coast Synth Eradicator Steel Mentor: As mentioned in Nick Valentine's entry above, Synths are advanced androids developed by The Institute, the descendants of MIT scientists who holed up underground and have been playing around with advanced tech as the survivors on the surface fought tooth and nail to survive