Gobakhan, Sandswept Wastes

—Lost in sand: Players start the game with 10 life points. Players don't loose the game if their life
total reaches 0, instead they sacrifice a way
counter and skip their next turn. In their next
turn, they return to 10 life points. Every turn
players may send creatures into Gobakhan by
attacking, and, for every 2 damage dealt, they get
1 way counter. Then, sacrifice one creature that
attacked Gobakhan. When a player would reach
20 way counters, they escape Gobakhan and win