Valor of the Worthy

The trade white keeps making with cheap Auras is that they generate card disadvantage: two cards spent, one card left on the battlefield, and a blowout waiting whenever the creature dies to removal. This one buys out of that trade in the color's native currency. The +1/+1 pushes early aggression, but the real work is the leaves-the-battlefield clause: when the enchanted creature leaves the battlefield, whatever killed it hands you a 1/1 flier, so the removal spell that was supposed to two-for-one you nets even, and the token carries the counterattack over a stalled ground. That structure rewards putting it on something an opponent is already inclined to answer: an evasive threat, a value creature, anything a removal-heavy deck cannot ignore. Where a card like Ethereal Armor grows with your board and gambles on the creature surviving, this one is indifferent to whether the host lives; the Spirit is the same insurance whether the buff swings a race or the whole thing eats a targeted kill spell the following turn. The design is disciplined rather than flashy, aimed squarely at the historical reason go-wide white decks were reluctant to lean on Auras at all: it converts the one weakness that made the whole category a liability into a rounding error.