Intrepid Hero

The threat assessment here is encoded in a single number: power 4 or greater. That clause turns a 1/1 body into a tax on every fat creature an opponent commits, and it tells you exactly what kind of board this Hero is designed to police: the haymakers, the things big enough to win combat on their own. Smaller creatures walk past it untouched, which keeps the activation from being a universal off-switch and gives the design its discipline. The repeatable tap ability means the threat is standing every turn, not a one-shot answer, so the real pressure is positional: an opponent has to weigh whether casting that 5/5 is worth handing over a removal target the moment it lands. The vulnerabilities are the obvious ones. The 1/1 frame dies to anything, the ability is summoning-sick the turn it arrives, and it cannot touch a creature until power crosses the threshold, which means tokens and weenies slip the leash. What makes the card durable as a concept is that it answers exactly the part of the board most other cheap white removal struggles with: the big single thing that has already resolved. White has spent decades reaching for that effect through exile auras and tap-down enchantments; here it lives on a creature you can replay and protect, a quiet sentry that keeps the pressure on opponents to play under the curve.