Gift of Granite

The whole pitch here is the flash clause grafted onto an effect that would otherwise be unplayable. A permanent +0/+2 buff is the kind of thing combat-trick auras have always struggled to justify: it does nothing to the board on the turn you tap out for it, and it telegraphs the block before the attacker has committed. Adding flash inverts that problem. Now the aura is an ambush, deployable in the declare-blockers step to swing a combat that the attacking player had every reason to think was settled, or held up to leave a creature standing through a one-damage burn spell. The toughness-only boost is the design's deliberate ceiling: this saves creatures, it does not win races. It will never trade up by pushing damage through, only by surviving it. That narrow band is what an instant-speed aura at this cost is allowed to be. The card belongs to a small tradition of flash-enabled enchantments that exist to reframe when an aura's downside (sorcery-speed commitment, blow-out vulnerability) gets paid, rather than to make the effect itself bigger.