Marooned

Not legal in this format after release.

Not legal in this format after release.

A {U} lock on an already tapped threat is efficient, but unlike Static Prison it has no immediate answer to untapped targets and is fragile.

Could be wrong if A prevalent tapped artifact or creature threat could make its cheap lock mode a stronger sideboard tool.

Legacy demands immediate, resilient interaction; this is a conditional aura lock and compares poorly with the format's efficient answers.

Could be wrong if If a major target is routinely tapped and hard to remove otherwise, one-mana locking may prove worthwhile.

It can cheaply strand a tapped creature or artifact, but Journey to Nowhere is far more reliable and aura removal creates real risk.

Could be wrong if The unknown set mechanics and post-release creature/artifact field determine whether its conditional {U} mode is valuable.

It can lock a tapped commander or utility artifact cheaply, but opponents can remove, sacrifice, or bounce the permanent or Aura.

Could be wrong if Commander-centric tables may value a low-cost commander lock more than optimized decklists generally do.

A {U} Aura can permanently answer a creature after it attacks; paying {3} also locks an untapped threat, though aura risk keeps it below premium removal.

Could be wrong if Draft speed, aura-removal density, and the undefined beamed-up mechanic could substantially change its reliability.