The Creative team then split the guilds in half. We would focus on the guilds as they internally fought between the forces pulling them toward or away from Bolas's influence. These two sets were going to be about Nicol Bolas trying to slowly influence the world of Ravnica and warp it to his needs. The first two sets would take place mostly while the events of Ixalan and Dominaria were going on, which meant the Gatewatch would be busy elsewhere.

Rosewater wrote that 'once we knew that the year was two normal guild sets followed by an event set, the Creative team was able to start working on the fine details of the story.

On this story design, Mark Rosewater highlighted that they wanted the Bolas Arc to 'end with a big dramatic event' which required getting players to care that this event was occurring on Ravnica. The Guilds of Ravnica and Ravnica Allegiance sets each focus on five out of the ten Ravnica guilds and the shared storyline creates the foundation for the story in the War of the Spark set.

Ravnica Allegiance is the 80th Magic: The Gathering expansion while it is not part of a block, this set is functionally the second part of a Ravnica focused storyline set on the plane of Ravnica.

Magic: The Gathering expansion set Ravnica Allegiance Released

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