Faction set

A faction set is a Magic: The Gathering set characterized by groups of mechanically and flavorfully distinct cards that interact with other groups within that set.
The factions within a set each have a mechanical and creative identity. The cards of each faction may be identified with watermarks.
==Most prominent faction sets==
Set 	Plane 	Factions
Fallen Empires 	Dominaria 	The Order of Leitbur / The FarrelitesThe Vodalian Merfolk / HomaridsThe Order of the Ebon Hand / Thrulls Dwarven Stronghold / Orcs and Goblins Havenwood elves / Thallids
InvasionPlaneshiftApocalypse 	Dominaria 	The Coalition The Phyrexians
Champions of KamigawaBetrayers of KamigawaChampions of Kamigawa 	Kamigawa 	The Mortals The Kami
Ravnica: City of GuildsGuildpactDissensionReturn to RavnicaGatecrashDragon's MazeGuilds of RavnicaRavnica Allegiance	Ravnica 	Azorius Senate
 House Dimir
 Cult of Rakdos
 Gruul Clans
 Selesnya Conclave
 Orzhov Syndicate
 Izzet League
 Golgari Swarm
 Boros Legion
 Simic Combine
Shards of AlaraConfluxAlara Reborn 	Alara 	Bant
 Esper
 Grixis
 Jund
 Naya
Scars of MirrodinMirrodin BesiegedNew Phyrexia 	Mirrodin / New Phyrexia	The Mirrans The Phyrexians
Khans of TarkirFate Reforged 	Tarkir 	Abzan Houses
 Jeskai Way
 Sultai Brood
 Mardu Horde
 Temur Frontier
Dragons of Tarkir 	Tarkir 	Ojutai Brood
 Silumgar Brood
 Kolaghan Brood
 Atarka Brood
 Dromoka Brood
Rise of the EldraziBattle for ZendikarOath of the Gatewatch 	Zendikar 	The Zendikari / the Gatewatch The Eldrazi
IxalanRivals of Ixalan 	Ixalan 	The Brazen Coalition The Sun Empire The Legion of Dusk The River Heralds
Strixhaven: School of Mages 	Arcavios 	Silverquill
 Prismari 
Witherbloom 
Lorehold
Quandrix
==Not faction sets==
*Although set on Ravnica, War of the Spark and Murders at Karlov Manor are backdrop sets rather than faction sets.
*Similarly, The Lost Caverns of Ixalan is a backdrop set on Ixalan.
*The core mechanics of Innistrad block are morbid, flashback, and double-faced cards. None of those mechanics are isolated to the five typal groups (Humans, Spirits, Vampires, Werewolves, and Zombies). Midnight Hunt and Crimson Vow had more of a factional feel, as both had five mechanics siloed to the five subtypes.
*While there were ten race groups and ten realms for Kaldheim, it was not built as a faction set. 
*Each two-color archetype of Aetherdrift is flavored to a different racing team but is not mechanically a faction set.
*Although Valiant and Forage are isolated to certain archetypes in Bloomburrow, the larger mechanics in as-fan, offspring and gift, are spread across all the animal groups.
==References==
Category:Magic sets