Form a Posse Cards
The complete Form a Posse checklist: 3 cards — cards spanning 2024.
Data updated June 28, 2026.
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Frequently Asked Questions about Form a Posse Cards
Does Form a Posse have a rookie card?
No confirmed Form a Posse rookie cards are currently in the AgentGrail catalog. The catalog covers 3 Form a Posse cards in total. Check back as we continue to add new sets.
What years were Form a Posse cards made?
The AgentGrail catalog includes Form a Posse cards from 2024, totaling 3 cards across all sets and brands. The earliest cards date from 2024 and the most recent are from 2024.
Where can I buy Form a Posse cards?
eBay is the largest marketplace for Form a Posse 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 28, 2026