Sustainer of the Realm
The defensive Angel as a design footnote. The whole card lives in one conditional: it only firms up its toughness when it blocks, and only until end of turn, which makes it a flier that wants to sit back and absorb attackers rather than press an advantage. That block-triggered toughness boost reads as Wizards trying to give white a body that taxes attacks without being a true wall: it flies, so it can also turn around and trade in the air, but the bonus never helps it on offense because attacking doesn't trigger it. The effect resets every turn, so there's no stacking, no permanent growth, just a creature that becomes a 2/5 in any single combat where it stands in front of something. It's the kind of incremental, combat-math creature Urza's-block white was full of, built around the idea that a flier with reinforced defense is harder to kill through damage than its printed numbers suggest. The math is real but small: most of the time you'd rather have a body that does its work on both sides of combat, and the requirement that it block to get the bonus puts the card permanently on the back foot.
