Sibling Rivalry Cards
The complete Sibling Rivalry checklist: 2 cards — cards spanning 2022.
Data updated June 24, 2026.
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mtg
2022
Brother's War 20221 card
Frequently Asked Questions about Sibling Rivalry Cards
Does Sibling Rivalry have a rookie card?
No confirmed Sibling Rivalry rookie cards are currently in the AgentGrail catalog. The catalog covers 2 Sibling Rivalry cards in total. Check back as we continue to add new sets.
What years were Sibling Rivalry cards made?
The AgentGrail catalog includes Sibling Rivalry cards from 2022, totaling 2 cards across all sets and brands. The earliest cards date from 2022 and the most recent are from 2022.
What sets include Sibling Rivalry cards?
Sibling Rivalry cards appear in numerous sets, including The Brothers' War, Brother's War. The full checklist on this page lists every set in the AgentGrail catalog.
Where can I buy Sibling Rivalry cards?
eBay is the largest marketplace for Sibling Rivalry mtg cards, offering both raw and graded (PSA, BGS, SGC) copies. Use the "Find on eBay" buttons on this page to search current listings. For investment-grade copies, look for PSA 10 certified cards.
Answers are grounded in AgentGrail catalog data and recent eBay market comps.
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Compiled by the AgentGrail team · Data refreshed June 24, 2026