Fresh Start

Removal that leaves the body on the battlefield is a specific school of design, and this belongs to its purely defensive wing. It kills nothing: the creature stays in play, keeps its power somewhere on the low end, and only loses five points of attacking pressure plus whatever its text was doing. What the Aura actually neutralizes is the threat's identity. Flying stops mattering, deathtouch stops mattering, the activated ability that made the creature worth a card stops mattering, and a menacing attacker becomes a wall that cannot press an advantage. The -5/-0 keeps the deal frank about what it is: it defangs the offense without pretending to be a Pacifism or a hard answer, so the enchanted creature can still block, still chump, still exist as a body its controller paid for. Flash is what elevates it from a slow tempo tax into a combat tool. Cast in the declare-attackers step, it can strip the keyword that was about to matter (evasion, first strike, an unblockable clause) and turn a lethal swing into a mistake, all at instant speed for a color that rarely gets to touch creatures already on the board. Blue's answers to resolved threats have historically leaned on bounce and taxation rather than direct suppression; this is a rarer shape, an Aura that does not remove the permanent but quietly erases the reason it was scary.