Underworld Breach

Timeline
- - Released
- - Status changed to Banned in Legacy
- - Status changed to Banned in Pioneer
- - Status changed to Game Changers in Commander
- - Status changed to Banned in Modern
Rationale
Underworld Breach has been banned in the Pioneer, Legacy, and Modern formats for its ability to generate extremely resilient and explosive combo potential, fundamentally disrupting the competitive metagame. In Legacy, its interaction with cards such as Lion's Eye Diamond was deemed too problematic. In Modern, the ban was necessitated by the deck’s inherent resiliency and explosiveness, particularly when forming specific combative engines like the Temur Grinding Breach, which proved highly resistant to standard counterplay and graveyard hate. Historically, the card has been banned in these formats to mitigate high-risk, high-power combo kills and preserve the general balance of the respective game environments.
This summary was generated by gemma4 on September 14, 2026. It has not yet been reviewed by a human editor and may contain some inaccuracies. Learn more.
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