The guilds of Ravnica are once again gaining influence and power after the schism. No longer bound by the magical shackles of the Guild Pact, they increasingly come into conflict with each other, in competition for power. The curiosity of the planeswalker mage Jace Beleren leads him to the trail of an ancient secret, the disclosure of which could upset the precarious balance of the guilds, on which the fate of all of Ravnica depends. .