Secret Lair’s horse-butt bonus card is tournament-legal in Commander
A horse-butt Secret Lair bonus card is now tournament-legal in Commander. The joke pull is also the kind of oddball print collectors chase.

A Secret Lair bonus card built around a horse butt has started shipping to backers, and the joke lands harder because the card is tournament-legal as an artifact in Magic: The Gathering. In Commander, that turns a punchline into a real deckbuilding curiosity, not just a collector oddity.
Secret Lair bonus cards matter because they change how people buy these drops. Wizards of the Coast has done this before with My Little Pony tie-ins for Extra Life: Ponies: The Galloping sold from Oct. 22 to Nov. 5, 2019 for $50, and Wizards said it would donate $30 from each set sold. Ponies: The Galloping 2 returned in 2023, with Wizards describing it as mechanically unique silver-bordered cards and saying 50% of each purchase would go to the Seattle Children’s Autism Center.
That fundraising track sits inside a longer Extra Life relationship. Wizards said its partnership with Extra Life began in 2013 and had donated over $4 million by September 2023, when the company set a $1.3 million Extra Life goal. The new horse-butt card fits that same pattern of goofy, shareable Secret Lair packaging that still has a serious buying hook behind it.
The rules context matters too. Since Unfinity, Wizards has used acorn symbols to mark cards that are not legal in most Constructed tournament formats, and it says acorn symbols and silver borders mean the same thing from a rules perspective. Some Unfinity cards are legal in Commander and the Eternal formats, Legacy and Vintage, and Wizards defines Legacy as a 60-card constructed format using cards from all legal sets, while Vintage uses cards from all legal sets including the Power Nine. Wizards has also said recent Secret Lair cards are legal in Commander, Legacy and Vintage, including the Secret Lair x Sonic: Friends & Foes drop, which includes seven new-to-Magic cards.
That is why a horse-butt bonus card can get real traction beyond the laugh. It is still a gag, but it is also the sort of legal, sleeveable oddity that keeps Secret Lair drops in circulation long after the shipping notice disappears.
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