Ravnica is under siege as Nicol Bolas and the planeswalkers of the Gatewatch face off in their epic final battle.
- Your War of the Spark booster box contains at least one PLANESWALKER IN EVERY PACK. (Rarity varies between uncommon and mythic rare.)
- New mechanic AMASS and returning favorite PROLIFERATE both help strengthen your creatures with +1/+1 counters.
Each pack contains 15 cards.