How to play the Horde format: Horde Magic: A New Way to Play Magic and Survive Zombie Invasions
RulesPoison Counters You have to beat the Rat Horde deck before the entire city is doomed to disease. Every time a poison counter is flipped, it adds to the poison total. 10 poison counters means game over.
Emblems Sorin’s emblem plays like a token, so it triggers another flip and buffs the rats permanently. From my experience, anthem-esque effects are great for Horde decks because they increase the difficulty over the course of the game to scale with the survivors being able to cast bigger and better spells. This is especially important seeing as the rats are 1/1s versus other, bigger tokens.
Challenge adjustments: add or remove discard spells or some bigger spells like an additional Plague Wind or Barter in Blood.