Carrion Crow

The "enters tapped" clause on an evasive black flier is a quiet bit of cost accounting. A 2/2 flier at this cost would be a serviceable common in any era, so the design pays for the flying by having the body arrive tapped: a small tempo tax that keeps the rate honest at the low rarity it was built for. Summoning sickness already forbids the attack the turn it lands, but the tapped clause adds a restriction that sickness alone does not, denying you the option to hold the creature back as a blocker. It comes down unable to intercept anything, so it cannot stonewall an incoming flier on the turn you cast it; only once you untap does it become a two-way threat that both pressures and defends. That deferred blocking window is the whole transaction, and it marks this as a plain black-based aggressive beater with no ambitions beyond swinging in the air. The Zombie Bird typing is the only real flourish, a flavor note about scavengers circling a battlefield rather than any tribal payoff the card was reaching for.