Eyeblight Massacre

The tribal sweeper is a genre with a sharp internal tension: a board wipe that spares your own creatures is only as good as the deck built to exploit the exemption, and an Elf typal deck is exactly the shell that can field a wide, sticky board while reaching four mana. That is the whole calculus here. The choice of a flat -2/-2 rather than outright destruction is the load-bearing one: it slides past indestructible, it sweeps tokens and the early aggressive curve without targeting, and it leaves your own Elf army standing and able to swing the same turn. Black has a long line of "minus-X to non-[tribe]" effects that ask you to assemble your tribe before you fire the sweeper, and this sits among the harder-hitting Elf-protecting wraths because a clean -2/-2 erases two-toughness boards wholesale. The cost is baked into that same number: -2/-2 is fixed, so against anything taller than a small body the bigger threats simply walk away unscathed, and the exemption does nothing when the opposing board is not flooded with fragile creatures. Add the four-mana sorcery speed (no reach into combat, no reactive window) and the floor is real. It is a deck-defining tool when the deck exists to define around it, and a mediocre half-sweeper when it does not.