Seeker

Evasion-by-color-exclusion is a design lever white rarely pulls, and this aura is an early experiment with it. It functions as a fixer for the small-creature beatdown problem: in a meta where most blockers were green ground troops and black weenies, routing a body around everything except artifact creatures and white creatures turns any one-power attacker into a reliable clock. The choice of exception set is what dates the design. Artifact creatures in 1994 meant a handful of expensive curiosities; white creatures meant the mirror. So the "except" clause was, in practice, "except the mirror match," a strange thing to bake into an aura when shroud, protection, and flying already existed as cleaner solutions. The cost shape is the other tell: a double-white commitment of the sort the era used to gate effects it considered powerful, even when the rate did not warrant it. What this aura really represents is the design team feeling out where unblockability could live in the color pie before the answer (it mostly cannot, and when it does it pays a tax) settled into doctrine. The card itself never found a home, but the question it asks (can white have conditional unblockability, and at what price) gets re-asked every few years, usually with a tighter answer.