Rin and Seri, Inseparable #278 – Buy-A-Box Promos (Promo)

Magic: The Gathering · Buy-A-Box Promos · Promo

Rin and Seri, Inseparable #278 Price

Rin and Seri, Inseparable (#278, Promo) from Buy-A-Box Promos is worth $30.60 to $32.53 in Near Mint condition on TCGplayer as of October 4, 2026, depending on the printing (Foil to Normal). On Cardmarket, Europe's main marketplace, the Normal sells for €10.86.

Near Mint · TCGplayer: $32.53
Near Mint · Cardmarket: €10.86
30-day change: +0.3%
Printings: 7

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Rin and Seri, Inseparable prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Normal	$32.53	€10.86
Foil	$30.60	—
Foil - Chinese (T)	—	—
Foil - Italian	—	—
Foil - Japanese	—	—
Foil - Russian	—	—
Foil - Spanish	—	—

TCGplayer market price and Cardmarket price for Near Mint English copies. They are two separate markets, so the euro figure is Cardmarket's own price, not a conversion of the dollar one. Source: TCGplayer, Cardmarket.

Card details

Set: Buy-A-Box Promos
Card number: 278
Rarity: Promo
Released: July 19, 2009
Illustrator: Leesha Hannigan
Power / toughness: 4/4
Type line: Legendary Creature — Dog Cat
Rules text: Whenever you cast a Dog spell, create a 1/1 green Cat creature token.
Whenever you cast a Cat spell, create a 1/1 white Dog creature token.
RGW, T: Rin and Seri, Inseparable deals damage to any target equal to the number of Dogs you control. You gain life equal to the number of Cats you control.

Rin and Seri, Inseparable: common questions

How much is Rin and Seri, Inseparable #278 worth?

Rin and Seri, Inseparable (#278, Promo) from Buy-A-Box Promos is worth $30.60 to $32.53 in Near Mint condition on TCGplayer as of October 4, 2026, depending on the printing (Foil to Normal). On Cardmarket, Europe's main marketplace, the Normal sells for €10.86.

What set is Rin and Seri, Inseparable from?

Rin and Seri, Inseparable is card 278 in Buy-A-Box Promos, released July 19, 2009. Its rarity is Promo. Illustrated by Leesha Hannigan.

Is Rin and Seri, Inseparable going up in price?

Over the last 30 days the Near Mint Normal price on TCGplayer moved from $32.42 (September 6, 2026) to $32.53 (October 4, 2026), a change of +0.3%. The 30-day low was $32.25 and the high $32.53.

How do I check what my Rin and Seri, Inseparable is worth?

Scan it with the TCG Vault app on iPhone: it identifies the card from the camera in seconds and shows its current market price and price history, then keeps it in your collection so you can follow its value.