Shredding Winds
Seven damage is a strange number for a removal spell: it is far more than most fliers need, and that generosity is what the restriction buys. Green has historically been fenced off from unconditional creature removal as a color-pie matter, so when the color is granted permission to kill a creature at instant speed, the permission arrives bolted to a clause. Here the clause is "must have flying," which keeps the effect out of white's and black's lanes and confines it to green's traditional right to answer the sky. Point it at anything grounded and the card is a blank; that inertness against half the board is exactly the price green pays to hold a reach spell at instant speed. What makes the design coherent is that the restriction and the size scale together: because the spell can never touch a nonflier, the number can climb high enough to cover the ordinary run of angels and dragons without threatening the pie. It is damage, though, not destruction, so the ceiling matters. A sufficiently large flier survives the seven outright, and anything indestructible or protected shrugs it off entirely. That gap is the honest shape of green removal: not a guillotine but a big enough burst to clear most of what flies, aimed narrowly enough that the color was allowed to have it at all.
