Vigilant Martyr

A period piece from the brief era when enchantment-protection was its own design axis. The first ability is generic insurance: a one-mana body that trades itself to regenerate something more valuable, the kind of cheap utility cleric Mirage-block white printed in volume. The second ability is the artifact of its moment. Countering a spell that targets an enchantment is so narrow it only makes sense in a world where Disenchant effects ran heavy and where enchantments mattered enough to defend. That is exactly the metagame this card was built for: white as the color of permanents-on-the-table, with the counterplay to losing them running through bodies like this rather than instants held in hand. The , tap, sacrifice cost is steep for what amounts to a conditional counterspell, which tells you the designers never expected a maindeck staple so much as a flexible answer that happened to also be a creature. What makes it worth a second look is the design logic underneath: white in this period answered threats by spending creatures, converting a permanent's worth of board presence into a one-time effect, rather than holding up reactive mana. The two-mode split (regenerate a thing you care about, or stop a thing that kills a thing you care about) is the whole thesis of defensive white from the era, compressed onto a 1/1.