Zagorka, Mother of Sanctum

Modern generally demands immediate impact or efficient synergy; a vulnerable four-mana creature that waits until end step and gifts mana is too slow.

Could be wrong if A new low-cost landfall or land-token combo payoff could create a niche for its repeatable land generation.

At four mana this is highly exposed to Legacy's cheap interaction and does not offer the unique, immediate effect needed to overcome its symmetry.

Could be wrong if A specialized landfall or mana-combo shell could exploit the token more effectively than conventional Legacy decks.

Repeatable fixing, self-ramp, and a political attack deterrent are useful in matching decks, though freely offering every opponent mana is costly.

Could be wrong if Optimized tables may simply decline the token when attacking is best, leaving an easily removed four-mana creature.

Vigilance and trample on a 4/2 plus recurring land tokens create a strong mana-and-combat dilemma, though the GUR cost and opponent choice limit it.

Could be wrong if Unknown fixing and removal density could make its three-color cost or two toughness much more punishing than expected.