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 expansions Guilds of Ravnica and Ravnica Alllegiance.
• Each War of the Spark booster pack contains 15 randomly inserted game cards.
