A-High-Rise Sawjack

A defensive body that punishes the one attack it is built to stop. The 1/4 with Reach is already a competent wall against ground and air alike, but the conditional pump inverts the usual math of blocking fliers: a creature that would otherwise trade toughness for the privilege of trading blows instead swells to a 4/4 the moment a flier throws itself at it. The trigger is narrow by design, keyed to blocking specifically (not attacking, not damage, just the act of declaring the block against something with flying), so it rewards the patient defender rather than the aggressor. That restriction is what keeps the rate fair: the +3/+0 evaporates at end of turn and does nothing on offense, so this never becomes a cheap beater masquerading as a blocker. It is a role-player in the oldest sense, a green common whose job is to make an attacking flier reconsider, and to turn the second-best blocker in the archetype into a genuine deterrent against evasion.