Crux of the Theory

Mana cost

{1}{U}

Type

Enchantment

Set

Alchemy: Reality Fracture #5 (uncommon)

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.

Crux of the Theory has 1 printing, first in Alchemy: Reality Fracture (2026).

Legality

• commander: not legal
• legacy: not legal
• vintage: not legal
• pauper: not legal
• modern: not legal
• pioneer: not legal
• standard: not legal
• brawl: legal