Theorist's Sanctum

A conditional Island is a real deckbuilding cost; without confirmed Jace density or Empower payoff, it is only a narrow utility-land test.

Could be wrong if A strong revealed Jace and meaningful Empower reward could make the tapped-land risk trivial in dedicated lists.

Pioneer demands reliable early mana, and this is often a tapped Island before a Jace appears; any adoption is likely as a small utility slot.

Could be wrong if Existing Jace shells may value a fetchable Island subtype and Empower effect more than the supplied context indicates.

It is fetchable as an Island, but Modern's tempo makes its tapped floor costly and the card needs a proven Jace payoff to earn a nonbasic slot.

Could be wrong if A competitive blue shell with dense Jaces could use a singleton because the Island subtype lowers its opportunity cost.

The Island subtype offers tutor access, but an often-tapped nonbasic is vulnerable and too low-impact without a demonstrated Jace/Empower package.

Could be wrong if A Legacy control list with abundant Jaces could turn this into a low-cost singleton utility land.

Singleton Jace-superfriends decks can accept the tapped floor for a fetchable blue land with repeatable Jace utility, but it remains narrow.

Could be wrong if Empower Jace 2 is undefined, and its actual effect could make this much better or merely a worse Island.

Without a Jace it is worse than a basic Island and should stay out; with one, it is a narrow land-slot upside whose activation is undefined.

Could be wrong if The frequency, quality, and rarity of Jaces plus the actual Empower rules are unknown.