Benalish Honor Guard

A 2/2 for two mana whose growth is gated behind a single deckbuilding promise: every legendary creature you control pushes its power up, and nothing else does. That makes it a payoff dressed as a body, an honest white two-drop that turns into a real threat only if the rest of the deck commits to legends. Because the bonus reads only the battlefield, the card lives or dies by board state: with no legends out it is a vanilla beater, and with three it is swinging for five. The design sits in a recurring tension white knows well, the cheap aggressive creature that wants to fill a curve but also wants to reward a specific build-around. Here the reward axis is power alone (the toughness never moves), so it grows into a hitter without getting harder to kill, which keeps the scaling aggressive rather than defensive; it hits harder but dies to the same removal it always did. It is a clean piece of legendary-matters signposting: a common-weight payoff that tells you exactly what kind of deck it was built to belong to, and contributes very little outside it.