Commence the endgame! The grand plot of Nicol Bolas are revealed as the Elder Dragon himself invades the City of Guilds. The fight turns into an all-out planeswalker war. Dozens of powerful planeswalkers, from many disparate realities, unite against the elder dragon, who has claimed dominion over Ravnica and is perilously close to completing the Elderspell that harvests sparks and will grant him "ultimate power" and godhood.