Great Hall of the Biblioplex is a Magic: The Gathering trading card game card. It is a Land with a mana value of 0 and a normal layout. This Rare promo card is numbered 257p in the Secrets of Strixhaven Promos set (PSOS) and was illustrated by Constantin Marin.
2026 • Magic: The Gathering • Secrets of Strixhaven Promos
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| Condition | Value | Source | Trend | Price Details |
|---|---|---|---|---|
$1.06 | Guide Estimate | -4.5% | ||
Raw / Ungraded
TCGplayer Market (reference) · Guide Estimate evidence · captured Oct 15, 2026
Great Hall of the Biblioplex is a Magic: The Gathering trading card game card. It is a Land with a mana value of 0 and a normal layout. This Rare promo card is numbered 257p in the Secrets of Strixhaven Promos set (PSOS) and was illustrated by Constantin Marin.
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The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Featured
Great Hall of the Biblioplex
Game
Magic: The Gathering
Rarity, print treatment, and game-specific stats for this card.
Rare
Constantin Marin
Card Stock
English
Land
Abilities, attacks, oracle text, and flavor text printed on the card.
{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell. {5}: If this land isn't a creature, it becomes a 2/4 Wizard creature with "Whenever you cast an instant or sorcery spell, this creature gets +1/+0 until end of turn." It's still a land.
Notable collectible traits associated with this card profile.
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