Crux of the Theory
{1}
Enchantment
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Reference price
- Nonfoil
- No price
TCGplayer market price via Scryfall, updated Nov 1, 2026. It is an estimate, not an offer. It does not change with the condition or the language of your copy.
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Printing details
- Released
- October 13, 2026
- Language
- en
- Collector no.
- #5
- Rarity
- uncommon
Card text
Oracle text — the current official rules text for this card.
When this enchantment enters, heist target opponent's library.
Actualize — Whenever you cast a spell that isn't from your starting deck, empower Jace 2.
New to Magic? How to read this card
Beginner guide
Card text above uses Oracle text, the current official rules text for this card.
This costs one mana of any type and one blue mana.
- Mana
- Mana is the resource you spend to cast spells and activate abilities.
- Generic mana
- A numbered mana cost can be paid with mana of any type.