Irregular Cohort

Irregular Cohort was originally released as part of the Modern Horizons set in 2019, a product designed specifically to introduce new cards directly into the Modern format without passing through Standard. The design team, led by Ethan Fleischer, aimed to evoke the feeling of classic Magic: The Gathering sets while addressing the high power-level requirements of the format. This card utilizes the changeling mechanic, a feature originally introduced in the Lorwyn block, which allows a single creature to possess every creature type simultaneously.

The card was later included in 'The List', a rotating selection of reprints and iconic cards curated by Wizards of the Coast for inclusion in Set Boosters. By featuring this card in The List, the developers provided players with a renewed opportunity to acquire older, niche cards that benefit tribal-focused decks. Its reception among players has been largely centered on its utility as a versatile enabler in decks that rely on specific creature-type synergies, such as Slivers or Goblins, rather than its individual power on the battlefield.