Magic: The Gathering War of The Spark Booster Box | 36 Booster Packs | Planeswalker in Every Pack. Features : Your War of the Spark booster box contains at least one PLANESWALKER IN EVERY PACK. (Rarity varies between uncommon and mythic rare.). RAVNICA is under seige as Nicol Bolas and the planeswalkers of the Gatewatch face off in their epic final battle.. New mechanic AMASS and returning favorite PROLIFERATE both help strenghten your creatures with +1/+1 counters.. War of the Spark is the follow-up to the hit Magic: The Gathering (MTG) expansions GUILDS OF RAVNICA and RAVNICA ALLEGIANCE.. Your War of the Spark booster box includes 540 cards, including at least 36 planeswalker cards, to help FILL YOUR BINDER.. The first modern collectible card game, MAGIC: THE GATHERING (MTG) has inspired more than 20 million fans over 25 years.. WIZARDS OF THE COAST has been making the world’s best strategy games for almost 30 years - Magic: The Gathering (MTG), Dungeons & Dragons (D&D), and many more.